51766875782320 has 40 divisors (see below), whose sum is σ = 120415601702880. Its totient is φ = 20696837967360.

The previous prime is 51766875782311. The next prime is 51766875782351. The reversal of 51766875782320 is 2328757866715.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (67) coincides with the sum of the digits of its distinct prime factors.

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, 154712236 + ... + 155046475.

It is an arithmetic number, because the mean of its divisors is an integer number (3010390042572).

Almost surely, 2^{51766875782320} is an apocalyptic number.

It is an amenable number.

51766875782320 is an abundant number, since it is smaller than the sum of its proper divisors (68648725920560).

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

51766875782320 is a wasteful number, since it uses less digits than its factorization.

51766875782320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309760813 (or 309760807 counting only the distinct ones).

The product of its (nonzero) digits is 237081600, while the sum is 67.

The spelling of 51766875782320 in words is "fifty-one trillion, seven hundred sixty-six billion, eight hundred seventy-five million, seven hundred eighty-two thousand, three hundred twenty".