61212733932 has 72 divisors (see below), whose sum is σ = 169283819376. Its totient is φ = 17159356032.

The previous prime is 61212733931. The next prime is 61212733963. The reversal of 61212733932 is 23933721216.

It is not an unprimeable number, because it can be changed into a prime (61212733931) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 950943 + ... + 1013270.

It is an arithmetic number, because the mean of its divisors is an integer number (2351164158).

Almost surely, 2^61212733932 is an apocalyptic number.

It is an amenable number.

61212733932 is an abundant number, since it is smaller than the sum of its proper divisors (108071085444).

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

61212733932 is a wasteful number, since it uses less digits than its factorization.

61212733932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1964287 (or 1964278 counting only the distinct ones).

The product of its digits is 81648, while the sum is 39.

The spelling of 61212733932 in words is "sixty-one billion, two hundred twelve million, seven hundred thirty-three thousand, nine hundred thirty-two".