263030240464 has 20 divisors (see below), whose sum is σ = 510413678656. Its totient is φ = 131310581472.

The previous prime is 263030240443. The next prime is 263030240509. The reversal of 263030240464 is 464042030362.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12773064 + ... + 12793639.

Almost surely, 2^263030240464 is an apocalyptic number.

It is an amenable number.

263030240464 is a deficient number, since it is larger than the sum of its proper divisors (247383438192).

263030240464 is a wasteful number, since it uses less digits than its factorization.

263030240464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25567354 (or 25567348 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 34.

The spelling of 263030240464 in words is "two hundred sixty-three billion, thirty million, two hundred forty thousand, four hundred sixty-four".