51541145104 has 20 divisors (see below), whose sum is σ = 103082291200. Its totient is φ = 24939263520.

The previous prime is 51541145069. The next prime is 51541145111. The reversal of 51541145104 is 40154114515.

51541145104 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51956304 + ... + 51957295.

It is an arithmetic number, because the mean of its divisors is an integer number (5154114560).

Almost surely, 2^51541145104 is an apocalyptic number.

It is an amenable number.

51541145104 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51541145104 is a wasteful number, since it uses less digits than its factorization.

51541145104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103913638 (or 103913632 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 31.

Adding to 51541145104 its reverse (40154114515), we get a palindrome (91695259619).

The spelling of 51541145104 in words is "fifty-one billion, five hundred forty-one million, one hundred forty-five thousand, one hundred four".