1520462615420 has 96 divisors (see below), whose sum is σ = 3843189504000. Its totient is φ = 493604734464.

The previous prime is 1520462615407. The next prime is 1520462615429. The reversal of 1520462615420 is 245162640251.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1520462615429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4939181 + ... + 5237979.

It is an arithmetic number, because the mean of its divisors is an integer number (40033224000).

Almost surely, 2^{1520462615420} is an apocalyptic number.

1520462615420 is a gapful number since it is divisible by the number (10) 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 1520462615420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1921594752000).

1520462615420 is an abundant number, since it is smaller than the sum of its proper divisors (2322726888580).

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

1520462615420 is a wasteful number, since it uses less digits than its factorization.

1520462615420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300747 (or 300745 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 1520462615420 in words is "one trillion, five hundred twenty billion, four hundred sixty-two million, six hundred fifteen thousand, four hundred twenty".