61194598464 has 56 divisors (see below), whose sum is σ = 163185660928. Its totient is φ = 20237575680.

The previous prime is 61194598457. The next prime is 61194598469. The reversal of 61194598464 is 46489549116.

It is not an unprimeable number, because it can be changed into a prime (61194598469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1230427 + ... + 1279194.

Almost surely, 2^61194598464 is an apocalyptic number.

61194598464 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

61194598464 is an abundant number, since it is smaller than the sum of its proper divisors (101991062464).

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

61194598464 is a wasteful number, since it uses less digits than its factorization.

61194598464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2509763 (or 2509753 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 57.

The spelling of 61194598464 in words is "sixty-one billion, one hundred ninety-four million, five hundred ninety-eight thousand, four hundred sixty-four".