51144601408 has 28 divisors (see below), whose sum is σ = 101501102052. Its totient is φ = 25569520640.

The previous prime is 51144601397. The next prime is 51144601457. The reversal of 51144601408 is 80410644115.

It is a happy number.

51144601408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 22653862144 + 28490739264 = 150512^2 + 168792^2 .

It is a congruent number.

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, 631038 + ... + 707458.

It is an arithmetic number, because the mean of its divisors is an integer number (3625039359).

Almost surely, 2^51144601408 is an apocalyptic number.

It is an amenable number.

51144601408 is a deficient number, since it is larger than the sum of its proper divisors (50356500644).

51144601408 is a wasteful number, since it uses less digits than its factorization.

51144601408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86890 (or 86880 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The spelling of 51144601408 in words is "fifty-one billion, one hundred forty-four million, six hundred one thousand, four hundred eight".