51489555598415 has 32 divisors (see below), whose sum is σ = 67434849138240. Its totient is φ = 37430097408000.

The previous prime is 51489555598391. The next prime is 51489555598489.

51489555598415 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51489555598415 - 2²² = 51489551404111 is a prime.

It is a Smith number, since the sum of its digits (74) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1725679877 + ... + 1725709713.

It is an arithmetic number, because the mean of its divisors is an integer number (2107339035570).

Almost surely, 2^{51489555598415} is an apocalyptic number.

51489555598415 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51489555598415 is a deficient number, since it is larger than the sum of its proper divisors (15945293539825).

51489555598415 is a wasteful number, since it uses less digits than its factorization.

51489555598415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42923.

The product of its digits is 1296000000, while the sum is 74.

The spelling of 51489555598415 in words is "fifty-one trillion, four hundred eighty-nine billion, five hundred fifty-five million, five hundred ninety-eight thousand, four hundred fifteen".