1026425664 has 84 divisors (see below), whose sum is σ = 3209544000. Its totient is φ = 311036160.

The previous prime is 1026425639. The next prime is 1026425683. The reversal of 1026425664 is 4665246201.

1026425664 is a `hidden beast` number, since 1 + 0 + 2 + 642 + 5 + 6 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74664 + ... + 87335.

Almost surely, 2^1026425664 is an apocalyptic number.

It is an amenable number.

1026425664 is an abundant number, since it is smaller than the sum of its proper divisors (2183118336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1026425664 is a wasteful number, since it uses less digits than its factorization.

1026425664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162028 (or 162015 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 1026425664 is about 32037.8785814542. The cubic root of 1026425664 is about 1008.7320834470.

The spelling of 1026425664 in words is "one billion, twenty-six million, four hundred twenty-five thousand, six hundred sixty-four".