51486486604 has 48 divisors (see below), whose sum is σ = 104972795200. Its totient is φ = 21639260160.

The previous prime is 51486486599. The next prime is 51486486643. The reversal of 51486486604 is 40668468415.

It is a happy number.

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, 530872 + ... + 620320.

Almost surely, 2^51486486604 is an apocalyptic number.

It is an amenable number.

51486486604 is an abundant number, since it is smaller than the sum of its proper divisors (53486308596).

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

51486486604 is a wasteful number, since it uses less digits than its factorization.

51486486604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89858 (or 89856 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 52.

The spelling of 51486486604 in words is "fifty-one billion, four hundred eighty-six million, four hundred eighty-six thousand, six hundred four".