56946951779 has 4 divisors (see below), whose sum is σ = 56954084376. Its totient is φ = 56939819184.

The previous prime is 56946951731. The next prime is 56946951811. The reversal of 56946951779 is 97715964965.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56946951779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56946951379) 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, 3554309 + ... + 3570294.

It is an arithmetic number, because the mean of its divisors is an integer number (14238521094).

Almost surely, 2^56946951779 is an apocalyptic number.

56946951779 is a deficient number, since it is larger than the sum of its proper divisors (7132597).

56946951779 is an equidigital number, since it uses as much as digits as its factorization.

56946951779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7132596.

The product of its digits is 128595600, while the sum is 68.

The spelling of 56946951779 in words is "fifty-six billion, nine hundred forty-six million, nine hundred fifty-one thousand, seven hundred seventy-nine".