51268901928 has 16 divisors (see below), whose sum is σ = 128172254880. Its totient is φ = 17089633968.

The previous prime is 51268901923. The next prime is 51268901941. The reversal of 51268901928 is 82910986215.

It is not an unprimeable number, because it can be changed into a prime (51268901923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1068102100 + ... + 1068102147.

It is an arithmetic number, because the mean of its divisors is an integer number (8010765930).

Almost surely, 2^51268901928 is an apocalyptic number.

It is an amenable number.

51268901928 is an abundant number, since it is smaller than the sum of its proper divisors (76903352952).

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

51268901928 is a wasteful number, since it uses less digits than its factorization.

51268901928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2136204256 (or 2136204252 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 51.

The spelling of 51268901928 in words is "fifty-one billion, two hundred sixty-eight million, nine hundred one thousand, nine hundred twenty-eight".