56958361729 has 4 divisors (see below), whose sum is σ = 56967376176. Its totient is φ = 56949347284.

The previous prime is 56958361723. The next prime is 56958361769. The reversal of 56958361729 is 92716385965.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56958361729 - 2²³ = 56949973121 is a prime.

It is a super-2 number, since 2×56958361729² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56958361723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4497739 + ... + 4510384.

It is an arithmetic number, because the mean of its divisors is an integer number (14241844044).

Almost surely, 2^56958361729 is an apocalyptic number.

It is an amenable number.

56958361729 is a deficient number, since it is larger than the sum of its proper divisors (9014447).

56958361729 is an equidigital number, since it uses as much as digits as its factorization.

56958361729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9014446.

The product of its digits is 24494400, while the sum is 61.

The spelling of 56958361729 in words is "fifty-six billion, nine hundred fifty-eight million, three hundred sixty-one thousand, seven hundred twenty-nine".