51577922660208 has 80 divisors (see below), whose sum is σ = 160292290993920. Its totient is φ = 13960941470208.

The previous prime is 51577922660203. The next prime is 51577922660267. The reversal of 51577922660208 is 80206622977515.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51577922660203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4039617885 + ... + 4039630652.

It is an arithmetic number, because the mean of its divisors is an integer number (2003653637424).

Almost surely, 2^{51577922660208} is an apocalyptic number.

It is an amenable number.

51577922660208 is an abundant number, since it is smaller than the sum of its proper divisors (108714368333712).

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

51577922660208 is a wasteful number, since it uses less digits than its factorization.

51577922660208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8079248574 (or 8079248568 counting only the distinct ones).

The product of its (nonzero) digits is 25401600, while the sum is 60.

The spelling of 51577922660208 in words is "fifty-one trillion, five hundred seventy-seven billion, nine hundred twenty-two million, six hundred sixty thousand, two hundred eight".