61235132644 has 24 divisors (see below), whose sum is σ = 123250339520. Its totient is φ = 26076469536.

The previous prime is 61235132641. The next prime is 61235132669. The reversal of 61235132644 is 44623153216.

It is not an unprimeable number, because it can be changed into a prime (61235132641) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6960474 + ... + 6969265.

Almost surely, 2^61235132644 is an apocalyptic number.

It is an amenable number.

61235132644 is an abundant number, since it is smaller than the sum of its proper divisors (62015206876).

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

61235132644 is a wasteful number, since it uses less digits than its factorization.

61235132644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13929907 (or 13929905 counting only the distinct ones).

The product of its digits is 103680, while the sum is 37.

The spelling of 61235132644 in words is "sixty-one billion, two hundred thirty-five million, one hundred thirty-two thousand, six hundred forty-four".