259690145612 has 24 divisors (see below), whose sum is σ = 459769778496. Its totient is φ = 128331007488.

The previous prime is 259690145597. The next prime is 259690145629. The reversal of 259690145612 is 216541096952.

It is a happy number.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172148 + ... + 740955.

It is an arithmetic number, because the mean of its divisors is an integer number (19157074104).

Almost surely, 2^259690145612 is an apocalyptic number.

It is an amenable number.

259690145612 is a deficient number, since it is larger than the sum of its proper divisors (200079632884).

259690145612 is a wasteful number, since it uses less digits than its factorization.

259690145612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913937 (or 913935 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 50.

The spelling of 259690145612 in words is "two hundred fifty-nine billion, six hundred ninety million, one hundred forty-five thousand, six hundred twelve".