51893061544 has 32 divisors (see below), whose sum is σ = 104769158400. Its totient is φ = 24006357760.

The previous prime is 51893061533. The next prime is 51893061553. The reversal of 51893061544 is 44516039815.

It is a junction number, because it is equal to n+sod(n) for n = 51893061494 and 51893061503.

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, 3225592 + ... + 3241639.

It is an arithmetic number, because the mean of its divisors is an integer number (3274036200).

Almost surely, 2^51893061544 is an apocalyptic number.

It is an amenable number.

51893061544 is an abundant number, since it is smaller than the sum of its proper divisors (52876096856).

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

51893061544 is a wasteful number, since it uses less digits than its factorization.

51893061544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6467313 (or 6467309 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 46.

The spelling of 51893061544 in words is "fifty-one billion, eight hundred ninety-three million, sixty-one thousand, five hundred forty-four".