100778404671 has 24 divisors (see below), whose sum is σ = 166952240000. Its totient is φ = 57384159696.

The previous prime is 100778404651. The next prime is 100778404703. The reversal of 100778404671 is 176404877001.

100778404671 is a `hidden beast` number, since 100 + 7 + 7 + 84 + 0 + 467 + 1 = 666.

It is not a de Polignac number, because 100778404671 - 2¹³ = 100778396479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100778404651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2808421 + ... + 2844078.

Almost surely, 2^100778404671 is an apocalyptic number.

100778404671 is a deficient number, since it is larger than the sum of its proper divisors (66173835329).

100778404671 is a wasteful number, since it uses less digits than its factorization.

100778404671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5652795 (or 5652792 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 45.

The spelling of 100778404671 in words is "one hundred billion, seven hundred seventy-eight million, four hundred four thousand, six hundred seventy-one".