61504877732 has 24 divisors (see below), whose sum is σ = 113525580000. Its totient is φ = 29075486976.

The previous prime is 61504877717. The next prime is 61504877743. The reversal of 61504877732 is 23777840516.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 772973 + ... + 848820.

It is an arithmetic number, because the mean of its divisors is an integer number (4730232500).

Almost surely, 2^61504877732 is an apocalyptic number.

It is an amenable number.

61504877732 is a deficient number, since it is larger than the sum of its proper divisors (52020702268).

61504877732 is a wasteful number, since it uses less digits than its factorization.

61504877732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622315 (or 1622313 counting only the distinct ones).

The product of its (nonzero) digits is 1975680, while the sum is 50.

The spelling of 61504877732 in words is "sixty-one billion, five hundred four million, eight hundred seventy-seven thousand, seven hundred thirty-two".