51400113051044 has 24 divisors (see below), whose sum is σ = 90072911656728. Its totient is φ = 25665007262720.

The previous prime is 51400113050963. The next prime is 51400113051113. The reversal of 51400113051044 is 44015031100415.

It can be written as a sum of positive squares in 4 ways, for example, as 259192992100 + 51140920058944 = 509110^2 + 7151288^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51400113050998 and 51400113051016.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15942152 + ... + 18893184.

It is an arithmetic number, because the mean of its divisors is an integer number (3753037985697).

Almost surely, 2^{51400113051044} is an apocalyptic number.

It is an amenable number.

51400113051044 is a deficient number, since it is larger than the sum of its proper divisors (38672798605684).

51400113051044 is a wasteful number, since it uses less digits than its factorization.

51400113051044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2956975 (or 2956973 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 51400113051044 its reverse (44015031100415), we get a palindrome (95415144151459).

The spelling of 51400113051044 in words is "fifty-one trillion, four hundred billion, one hundred thirteen million, fifty-one thousand, forty-four".