2657344979 has 2 divisors, whose sum is σ = 2657344980. Its totient is φ = 2657344978.

The previous prime is 2657344967. The next prime is 2657344993. The reversal of 2657344979 is 9794437562.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2657344979 is a prime.

It is a super-2 number, since 2×2657344979² = 14122964674833020882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2657344909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1328672489 + 1328672490.

It is an arithmetic number, because the mean of its divisors is an integer number (1328672490).

Almost surely, 2^2657344979 is an apocalyptic number.

2657344979 is a deficient number, since it is larger than the sum of its proper divisors (1).

2657344979 is an equidigital number, since it uses as much as digits as its factorization.

2657344979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11430720, while the sum is 56.

The square root of 2657344979 is about 51549.4420823349. The cubic root of 2657344979 is about 1385.1048379502.

The spelling of 2657344979 in words is "two billion, six hundred fifty-seven million, three hundred forty-four thousand, nine hundred seventy-nine".