6461239990652 has 18 divisors (see below), whose sum is σ = 11710517313768. Its totient is φ = 3119219304208.

The previous prime is 6461239990643. The next prime is 6461239990769. The reversal of 6461239990652 is 2560999321646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 960347408 + ... + 960354135.

Almost surely, 2^{6461239990652} is an apocalyptic number.

It is an amenable number.

6461239990652 is a deficient number, since it is larger than the sum of its proper divisors (5249277323116).

6461239990652 is a wasteful number, since it uses less digits than its factorization.

6461239990652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920701605 (or 1920701574 counting only the distinct ones).

The product of its (nonzero) digits is 37791360, while the sum is 62.

The spelling of 6461239990652 in words is "six trillion, four hundred sixty-one billion, two hundred thirty-nine million, nine hundred ninety thousand, six hundred fifty-two".