239153650457 has 2 divisors, whose sum is σ = 239153650458. Its totient is φ = 239153650456.

The previous prime is 239153650451. The next prime is 239153650499. The reversal of 239153650457 is 754056351932.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 238948902976 + 204747481 = 488824^2 + 14309^2 .

It is a cyclic number.

It is not a de Polignac number, because 239153650457 - 2⁴ = 239153650441 is a prime.

It is not a weakly prime, because it can be changed into another prime (239153650451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119576825228 + 119576825229.

It is an arithmetic number, because the mean of its divisors is an integer number (119576825229).

Almost surely, 2^239153650457 is an apocalyptic number.

It is an amenable number.

239153650457 is a deficient number, since it is larger than the sum of its proper divisors (1).

239153650457 is an equidigital number, since it uses as much as digits as its factorization.

239153650457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402000, while the sum is 50.

The spelling of 239153650457 in words is "two hundred thirty-nine billion, one hundred fifty-three million, six hundred fifty thousand, four hundred fifty-seven".