51400215134051 has 24 divisors (see below), whose sum is σ = 62482862476320. Its totient is φ = 41388430277376.

The previous prime is 51400215134017. The next prime is 51400215134089. The reversal of 51400215134051 is 15043151200415.

It is not a de Polignac number, because 51400215134051 - 2¹⁰ = 51400215133027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51400215133999 and 51400215134017.

It is not an unprimeable number, because it can be changed into a prime (51400215334051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117770546 + ... + 118206183.

It is an arithmetic number, because the mean of its divisors is an integer number (2603452603180).

Almost surely, 2^{51400215134051} is an apocalyptic number.

51400215134051 is a deficient number, since it is larger than the sum of its proper divisors (11082647342269).

51400215134051 is a wasteful number, since it uses less digits than its factorization.

51400215134051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235976831 (or 235976802 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 32.

Adding to 51400215134051 its reverse (15043151200415), we get a palindrome (66443366334466).

The spelling of 51400215134051 in words is "fifty-one trillion, four hundred billion, two hundred fifteen million, one hundred thirty-four thousand, fifty-one".