61477376306432 has 36 divisors (see below), whose sum is σ = 126946144786020. Its totient is φ = 29678733385728.

The previous prime is 61477376306419. The next prime is 61477376306503. The reversal of 61477376306432 is 23460367377416.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30030224640256 + 31447151666176 = 5479984^2 + 5607776^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4140440873 + ... + 4140455720.

Almost surely, 2^{61477376306432} is an apocalyptic number.

It is an amenable number.

61477376306432 is an abundant number, since it is smaller than the sum of its proper divisors (65468768479588).

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

61477376306432 is an equidigital number, since it uses as much as digits as its factorization.

61477376306432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8280896638 (or 8280896624 counting only the distinct ones).

The product of its (nonzero) digits is 64012032, while the sum is 59.

The spelling of 61477376306432 in words is "sixty-one trillion, four hundred seventy-seven billion, three hundred seventy-six million, three hundred six thousand, four hundred thirty-two".