461686808490 has 32 divisors (see below), whose sum is σ = 1166366675520. Its totient is φ = 116636667264.

The previous prime is 461686808461. The next prime is 461686808507. The reversal of 461686808490 is 94808686164.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 404987859 + ... + 404988998.

It is an arithmetic number, because the mean of its divisors is an integer number (36448958610).

Almost surely, 2^461686808490 is an apocalyptic number.

461686808490 is an abundant number, since it is smaller than the sum of its proper divisors (704679867030).

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

461686808490 is a wasteful number, since it uses less digits than its factorization.

461686808490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809976886.

The product of its (nonzero) digits is 15925248, while the sum is 60.

The spelling of 461686808490 in words is "four hundred sixty-one billion, six hundred eighty-six million, eight hundred eight thousand, four hundred ninety".