51496609480 has 16 divisors (see below), whose sum is σ = 115867371420. Its totient is φ = 20598643776.

The previous prime is 51496609471. The next prime is 51496609501. The reversal of 51496609480 is 8490669415.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 51489963396 + 6646084 = 226914^2 + 2578^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 643707579 + ... + 643707658.

Almost surely, 2^51496609480 is an apocalyptic number.

It is an amenable number.

51496609480 is an abundant number, since it is smaller than the sum of its proper divisors (64370761940).

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

51496609480 is a wasteful number, since it uses less digits than its factorization.

51496609480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287415248 (or 1287415244 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 52.

The spelling of 51496609480 in words is "fifty-one billion, four hundred ninety-six million, six hundred nine thousand, four hundred eighty".