100402678865 has 8 divisors (see below), whose sum is σ = 121222376448. Its totient is φ = 79829368560.

The previous prime is 100402678847. The next prime is 100402678877. The reversal of 100402678865 is 568876204001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100402678865 - 2⁶ = 100402678801 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61595921 + ... + 61597550.

It is an arithmetic number, because the mean of its divisors is an integer number (15152797056).

Almost surely, 2^100402678865 is an apocalyptic number.

It is an amenable number.

100402678865 is a deficient number, since it is larger than the sum of its proper divisors (20819697583).

100402678865 is a wasteful number, since it uses less digits than its factorization.

100402678865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123193639.

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 100402678865 in words is "one hundred billion, four hundred two million, six hundred seventy-eight thousand, eight hundred sixty-five".