43928819064 has 48 divisors (see below), whose sum is σ = 128125725000. Its totient is φ = 13516559424.

The previous prime is 43928819057. The next prime is 43928819113. The reversal of 43928819064 is 46091882934.

43928819064 is a `hidden beast` number, since 4 + 392 + 8 + 8 + 190 + 64 = 666.

43928819064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×43928819064² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 43928819064.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23465314 + ... + 23467185.

Almost surely, 2^43928819064 is an apocalyptic number.

It is an amenable number.

43928819064 is an abundant number, since it is smaller than the sum of its proper divisors (84196905936).

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

43928819064 is a wasteful number, since it uses less digits than its factorization.

43928819064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46932524 (or 46932517 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The spelling of 43928819064 in words is "forty-three billion, nine hundred twenty-eight million, eight hundred nineteen thousand, sixty-four".