1512649240452 has 144 divisors (see below), whose sum is σ = 4495028883072. Its totient is φ = 419978442240.

The previous prime is 1512649240447. The next prime is 1512649240457. The reversal of 1512649240452 is 2540429462151.

1512649240452 is a `hidden beast` number, since 1 + 5 + 12 + 64 + 92 + 40 + 452 = 666.

It is an interprime number because it is at equal distance from previous prime (1512649240447) and next prime (1512649240457).

It is a junction number, because it is equal to n+sod(n) for n = 1512649240398 and 1512649240407.

It is not an unprimeable number, because it can be changed into a prime (1512649240457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 683088 + ... + 1868664.

Almost surely, 2^{1512649240452} is an apocalyptic number.

1512649240452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1512649240452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2247514441536).

1512649240452 is an abundant number, since it is smaller than the sum of its proper divisors (2982379642620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1512649240452 is a wasteful number, since it uses less digits than its factorization.

1512649240452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185738 (or 1185733 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 1512649240452 in words is "one trillion, five hundred twelve billion, six hundred forty-nine million, two hundred forty thousand, four hundred fifty-two".