51447603884502 has 32 divisors (see below), whose sum is σ = 119587650681600. Its totient is φ = 14450174455968.

The previous prime is 51447603884491. The next prime is 51447603884507. The reversal of 51447603884502 is 20548830674415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51447603884507) 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, 10380869977 + ... + 10380874932.

It is an arithmetic number, because the mean of its divisors is an integer number (3737114083800).

Almost surely, 2^{51447603884502} is an apocalyptic number.

51447603884502 is an abundant number, since it is smaller than the sum of its proper divisors (68140046797098).

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

51447603884502 is a wasteful number, since it uses less digits than its factorization.

51447603884502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20761744980.

The product of its (nonzero) digits is 25804800, while the sum is 57.

The spelling of 51447603884502 in words is "fifty-one trillion, four hundred forty-seven billion, six hundred three million, eight hundred eighty-four thousand, five hundred two".