1051640715768 has 64 divisors (see below), whose sum is σ = 2678900234400. Its totient is φ = 343908065280.

The previous prime is 1051640715751. The next prime is 1051640715779. The reversal of 1051640715768 is 8675170461501.

It is a super-2 number, since 2×1051640715768² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1051640715768.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28129408 + ... + 28166768.

Almost surely, 2^{1051640715768} is an apocalyptic number.

It is an amenable number.

1051640715768 is an abundant number, since it is smaller than the sum of its proper divisors (1627259518632).

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

1051640715768 is a wasteful number, since it uses less digits than its factorization.

1051640715768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59552 (or 59548 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 51.

The spelling of 1051640715768 in words is "one trillion, fifty-one billion, six hundred forty million, seven hundred fifteen thousand, seven hundred sixty-eight".