8251848538457 has 2 divisors, whose sum is σ = 8251848538458. Its totient is φ = 8251848538456.

The previous prime is 8251848538429. The next prime is 8251848538529. The reversal of 8251848538457 is 7548358481528.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6022847314201 + 2229001224256 = 2454149^2 + 1492984^2 .

It is a cyclic number.

It is not a de Polignac number, because 8251848538457 - 2³⁶ = 8183129061721 is a prime.

It is not a weakly prime, because it can be changed into another prime (8251848538357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4125924269228 + 4125924269229.

It is an arithmetic number, because the mean of its divisors is an integer number (4125924269229).

Almost surely, 2^{8251848538457} is an apocalyptic number.

It is an amenable number.

8251848538457 is a deficient number, since it is larger than the sum of its proper divisors (1).

8251848538457 is an equidigital number, since it uses as much as digits as its factorization.

8251848538457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 344064000, while the sum is 68.

The spelling of 8251848538457 in words is "eight trillion, two hundred fifty-one billion, eight hundred forty-eight million, five hundred thirty-eight thousand, four hundred fifty-seven".