923947854864 has 80 divisors (see below), whose sum is σ = 2402723965824. Its totient is φ = 305943116800.

The previous prime is 923947854839. The next prime is 923947854871. The reversal of 923947854864 is 468458749329.

923947854864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 4268284 + ... + 4479524.

Almost surely, 2^923947854864 is an apocalyptic number.

It is an amenable number.

923947854864 is an abundant number, since it is smaller than the sum of its proper divisors (1478776110960).

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

923947854864 is a wasteful number, since it uses less digits than its factorization.

923947854864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211856 (or 211850 counting only the distinct ones).

The product of its digits is 418037760, while the sum is 69.

The spelling of 923947854864 in words is "nine hundred twenty-three billion, nine hundred forty-seven million, eight hundred fifty-four thousand, eight hundred sixty-four".