58172400861 has 16 divisors (see below), whose sum is σ = 82130704128. Its totient is φ = 36498124800.

The previous prime is 58172400823. The next prime is 58172400889. The reversal of 58172400861 is 16800427185.

It is not a de Polignac number, because 58172400861 - 2⁷ = 58172400733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58172400821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1388541 + ... + 1429821.

It is an arithmetic number, because the mean of its divisors is an integer number (5133169008).

Almost surely, 2^58172400861 is an apocalyptic number.

58172400861 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

58172400861 is a deficient number, since it is larger than the sum of its proper divisors (23958303267).

58172400861 is a wasteful number, since it uses less digits than its factorization.

58172400861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68932.

The product of its (nonzero) digits is 107520, while the sum is 42.

The spelling of 58172400861 in words is "fifty-eight billion, one hundred seventy-two million, four hundred thousand, eight hundred sixty-one".