51401043215004 has 48 divisors (see below), whose sum is σ = 137989377792000. Its totient is φ = 14587448502336.

The previous prime is 51401043215003. The next prime is 51401043215023. The reversal of 51401043215004 is 40051234010415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51401043215003) 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, 2053400844 + ... + 2053425875.

It is an arithmetic number, because the mean of its divisors is an integer number (2874778704000).

Almost surely, 2^{51401043215004} is an apocalyptic number.

It is an amenable number.

51401043215004 is an abundant number, since it is smaller than the sum of its proper divisors (86588334576996).

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

51401043215004 is a wasteful number, since it uses less digits than its factorization.

51401043215004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4106826882 (or 4106826880 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 51401043215004 its reverse (40051234010415), we get a palindrome (91452277225419).

The spelling of 51401043215004 in words is "fifty-one trillion, four hundred one billion, forty-three million, two hundred fifteen thousand, four".