100792780856 has 32 divisors (see below), whose sum is σ = 190695027600. Its totient is φ = 49940943360.

The previous prime is 100792780849. The next prime is 100792780861. The reversal of 100792780856 is 658087297001.

It is a junction number, because it is equal to n+sod(n) for n = 100792780798 and 100792780807.

It is a congruent 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, 9422471 + ... + 9433161.

Almost surely, 2^100792780856 is an apocalyptic number.

It is an amenable number.

100792780856 is a deficient number, since it is larger than the sum of its proper divisors (89902246744).

100792780856 is a wasteful number, since it uses less digits than its factorization.

100792780856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21239 (or 21235 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 53.

The spelling of 100792780856 in words is "one hundred billion, seven hundred ninety-two million, seven hundred eighty thousand, eight hundred fifty-six".