51009537313196 has 144 divisors (see below), whose sum is σ = 116017655685120. Its totient is φ = 19186191024000.

The previous prime is 51009537313169. The next prime is 51009537313199. The reversal of 51009537313196 is 69131373590015.

It is not an unprimeable number, because it can be changed into a prime (51009537313199) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 945452021 + ... + 945505971.

It is an arithmetic number, because the mean of its divisors is an integer number (805678164480).

Almost surely, 2^{51009537313196} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51009537313196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58008827842560).

51009537313196 is an abundant number, since it is smaller than the sum of its proper divisors (65008118371924).

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

51009537313196 is a wasteful number, since it uses less digits than its factorization.

51009537313196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63636 (or 63623 counting only the distinct ones).

The product of its (nonzero) digits is 2296350, while the sum is 53.

The spelling of 51009537313196 in words is "fifty-one trillion, nine billion, five hundred thirty-seven million, three hundred thirteen thousand, one hundred ninety-six".