51153765404 has 36 divisors (see below), whose sum is σ = 104178395664. Its totient is φ = 21913790976.

The previous prime is 51153765361. The next prime is 51153765427. The reversal of 51153765404 is 40456735115.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 421052 + ... + 528764.

It is an arithmetic number, because the mean of its divisors is an integer number (2893844324).

Almost surely, 2^51153765404 is an apocalyptic number.

It is an amenable number.

51153765404 is an abundant number, since it is smaller than the sum of its proper divisors (53024630260).

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

51153765404 is a wasteful number, since it uses less digits than its factorization.

51153765404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110154 (or 110145 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 41.

The spelling of 51153765404 in words is "fifty-one billion, one hundred fifty-three million, seven hundred sixty-five thousand, four hundred four".