51360064476 has 48 divisors (see below), whose sum is σ = 136990527744. Its totient is φ = 14671051776.

The previous prime is 51360064423. The next prime is 51360064507. The reversal of 51360064476 is 67446006315.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent 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, 327111 + ... + 457953.

It is an arithmetic number, because the mean of its divisors is an integer number (2853969328).

Almost surely, 2^51360064476 is an apocalyptic number.

It is an amenable number.

51360064476 is an abundant number, since it is smaller than the sum of its proper divisors (85630463268).

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

51360064476 is a wasteful number, since it uses less digits than its factorization.

51360064476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135530 (or 135528 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 42.

The spelling of 51360064476 in words is "fifty-one billion, three hundred sixty million, sixty-four thousand, four hundred seventy-six".