100782015457 has 16 divisors (see below), whose sum is σ = 110977810560. Its totient is φ = 91096296192.

The previous prime is 100782015391. The next prime is 100782015491. The reversal of 100782015457 is 754510287001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100782015457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100782015557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116968 + ... + 463945.

It is an arithmetic number, because the mean of its divisors is an integer number (6936113160).

Almost surely, 2^100782015457 is an apocalyptic number.

It is an amenable number.

100782015457 is a deficient number, since it is larger than the sum of its proper divisors (10195795103).

100782015457 is a wasteful number, since it uses less digits than its factorization.

100782015457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581352.

The product of its (nonzero) digits is 78400, while the sum is 40.

The spelling of 100782015457 in words is "one hundred billion, seven hundred eighty-two million, fifteen thousand, four hundred fifty-seven".