51156069852 has 24 divisors (see below), whose sum is σ = 120875104000. Its totient is φ = 16836174576.

The previous prime is 51156069823. The next prime is 51156069857. The reversal of 51156069852 is 25896065115.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51156069857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26980102 + ... + 26981997.

Almost surely, 2^51156069852 is an apocalyptic number.

It is an amenable number.

51156069852 is an abundant number, since it is smaller than the sum of its proper divisors (69719034148).

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

51156069852 is a wasteful number, since it uses less digits than its factorization.

51156069852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53962185 (or 53962183 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 48.

The spelling of 51156069852 in words is "fifty-one billion, one hundred fifty-six million, sixty-nine thousand, eight hundred fifty-two".