385714793257 has 2 divisors, whose sum is σ = 385714793258. Its totient is φ = 385714793256.

The previous prime is 385714793251. The next prime is 385714793273. The reversal of 385714793257 is 752397417583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 365092684441 + 20622108816 = 604229^2 + 143604^2 .

It is a cyclic number.

It is not a de Polignac number, because 385714793257 - 2¹⁵ = 385714760489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 385714793195 and 385714793204.

It is not a weakly prime, because it can be changed into another prime (385714793251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192857396628 + 192857396629.

It is an arithmetic number, because the mean of its divisors is an integer number (192857396629).

Almost surely, 2^385714793257 is an apocalyptic number.

It is an amenable number.

385714793257 is a deficient number, since it is larger than the sum of its proper divisors (1).

385714793257 is an equidigital number, since it uses as much as digits as its factorization.

385714793257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44452800, while the sum is 61.

The spelling of 385714793257 in words is "three hundred eighty-five billion, seven hundred fourteen million, seven hundred ninety-three thousand, two hundred fifty-seven".