61646234732 has 48 divisors (see below), whose sum is σ = 110341375200. Its totient is φ = 30127065600.

The previous prime is 61646234719. The next prime is 61646234759. The reversal of 61646234732 is 23743264616.

It is a super-2 number, since 2×61646234732² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58101482 + ... + 58102542.

It is an arithmetic number, because the mean of its divisors is an integer number (2298778650).

Almost surely, 2^61646234732 is an apocalyptic number.

It is an amenable number.

61646234732 is a deficient number, since it is larger than the sum of its proper divisors (48695140468).

61646234732 is a wasteful number, since it uses less digits than its factorization.

61646234732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2402 (or 2400 counting only the distinct ones).

The product of its digits is 870912, while the sum is 44.

The spelling of 61646234732 in words is "sixty-one billion, six hundred forty-six million, two hundred thirty-four thousand, seven hundred thirty-two".