253874899639 has 2 divisors, whose sum is σ = 253874899640. Its totient is φ = 253874899638.

The previous prime is 253874899573. The next prime is 253874899651. The reversal of 253874899639 is 936998478352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 253874899639 - 2⁷ = 253874899511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253874894639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126937449819 + 126937449820.

It is an arithmetic number, because the mean of its divisors is an integer number (126937449820).

Almost surely, 2^253874899639 is an apocalyptic number.

253874899639 is a deficient number, since it is larger than the sum of its proper divisors (1).

253874899639 is an equidigital number, since it uses as much as digits as its factorization.

253874899639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 705438720, while the sum is 73.

The spelling of 253874899639 in words is "two hundred fifty-three billion, eight hundred seventy-four million, eight hundred ninety-nine thousand, six hundred thirty-nine".