51441563604 has 24 divisors (see below), whose sum is σ = 126347700640. Its totient is φ = 16244704224.

The previous prime is 51441563599. The next prime is 51441563611. The reversal of 51441563604 is 40636514415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112810219 + ... + 112810674.

Almost surely, 2^51441563604 is an apocalyptic number.

It is an amenable number.

51441563604 is an abundant number, since it is smaller than the sum of its proper divisors (74906137036).

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

51441563604 is a wasteful number, since it uses less digits than its factorization.

51441563604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225620919 (or 225620917 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 51441563604 in words is "fifty-one billion, four hundred forty-one million, five hundred sixty-three thousand, six hundred four".