61332649476 has 72 divisors (see below), whose sum is σ = 166545753696. Its totient is φ = 17516096640.

The previous prime is 61332649457. The next prime is 61332649489. The reversal of 61332649476 is 67494623316.

It is a happy number.

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 23 ways as a sum of consecutive naturals, for example, 1429456 + ... + 1471736.

It is an arithmetic number, because the mean of its divisors is an integer number (2313135468).

Almost surely, 2^61332649476 is an apocalyptic number.

It is an amenable number.

61332649476 is an abundant number, since it is smaller than the sum of its proper divisors (105213104220).

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

61332649476 is a wasteful number, since it uses less digits than its factorization.

61332649476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44769 (or 44760 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 51.

The spelling of 61332649476 in words is "sixty-one billion, three hundred thirty-two million, six hundred forty-nine thousand, four hundred seventy-six".