1425760857 has 6 divisors (see below), whose sum is σ = 2059432362. Its totient is φ = 950507232.

The previous prime is 1425760841. The next prime is 1425760859. The reversal of 1425760857 is 7580675241.

1425760857 is a `hidden beast` number, since 14 + 25 + 7 + 608 + 5 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 910289241 + 515471616 = 30171^2 + 22704^2 .

It is not a de Polignac number, because 1425760857 - 2⁴ = 1425760841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1425760859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 79208928 + ... + 79208945.

It is an arithmetic number, because the mean of its divisors is an integer number (343238727).

Almost surely, 2^1425760857 is an apocalyptic number.

It is an amenable number.

1425760857 is a deficient number, since it is larger than the sum of its proper divisors (633671505).

1425760857 is a wasteful number, since it uses less digits than its factorization.

1425760857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158417879 (or 158417876 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The square root of 1425760857 is about 37759.2486286473. The cubic root of 1425760857 is about 1125.5088021464.

The spelling of 1425760857 in words is "one billion, four hundred twenty-five million, seven hundred sixty thousand, eight hundred fifty-seven".