1351642650740 has 96 divisors (see below), whose sum is σ = 3028836924288. Its totient is φ = 504903168000.

The previous prime is 1351642650707. The next prime is 1351642650781. The reversal of 1351642650740 is 470562461531.

It is a junction number, because it is equal to n+sod(n) for n = 1351642650691 and 1351642650700.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 23717480 + ... + 23774400.

It is an arithmetic number, because the mean of its divisors is an integer number (31550384628).

Almost surely, 2^{1351642650740} is an apocalyptic number.

1351642650740 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 1351642650740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1514418462144).

1351642650740 is an abundant number, since it is smaller than the sum of its proper divisors (1677194273548).

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

1351642650740 is a wasteful number, since it uses less digits than its factorization.

1351642650740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57489 (or 57487 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 1351642650740 in words is "one trillion, three hundred fifty-one billion, six hundred forty-two million, six hundred fifty thousand, seven hundred forty".