51405095896 has 32 divisors (see below), whose sum is σ = 120167758080. Its totient is φ = 20027959200.

The previous prime is 51405095891. The next prime is 51405095923. The reversal of 51405095896 is 69859050415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51405095891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41724300 + ... + 41725531.

It is an arithmetic number, because the mean of its divisors is an integer number (3755242440).

Almost surely, 2^51405095896 is an apocalyptic number.

51405095896 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

51405095896 is an abundant number, since it is smaller than the sum of its proper divisors (68762662184).

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

51405095896 is a wasteful number, since it uses less digits than its factorization.

51405095896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83449855 (or 83449851 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 52.

The spelling of 51405095896 in words is "fifty-one billion, four hundred five million, ninety-five thousand, eight hundred ninety-six".