2619317957 has 2 divisors, whose sum is σ = 2619317958. Its totient is φ = 2619317956.

The previous prime is 2619317951. The next prime is 2619317989. The reversal of 2619317957 is 7597139162.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2120510401 + 498807556 = 46049^2 + 22334^2 .

It is a cyclic number.

It is not a de Polignac number, because 2619317957 - 2²⁴ = 2602540741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2619317951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1309658978 + 1309658979.

It is an arithmetic number, because the mean of its divisors is an integer number (1309658979).

Almost surely, 2^2619317957 is an apocalyptic number.

It is an amenable number.

2619317957 is a deficient number, since it is larger than the sum of its proper divisors (1).

2619317957 is an equidigital number, since it uses as much as digits as its factorization.

2619317957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 714420, while the sum is 50.

The square root of 2619317957 is about 51179.2727283224. The cubic root of 2619317957 is about 1378.4660468983.

The spelling of 2619317957 in words is "two billion, six hundred nineteen million, three hundred seventeen thousand, nine hundred fifty-seven".