61371927432 has 24 divisors (see below), whose sum is σ = 166215636990. Its totient is φ = 20457309120.

The previous prime is 61371927413. The next prime is 61371927473. The reversal of 61371927432 is 23472917316.

61371927432 is a `hidden beast` number, since 6 + 1 + 371 + 9 + 274 + 3 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 50843936196 + 10527991236 = 225486^2 + 102606^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×61371927432² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 426193869 + ... + 426194012.

Almost surely, 2^61371927432 is an apocalyptic number.

It is an amenable number.

61371927432 is an abundant number, since it is smaller than the sum of its proper divisors (104843709558).

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

61371927432 is a wasteful number, since it uses less digits than its factorization.

61371927432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852387893 (or 852387886 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The spelling of 61371927432 in words is "sixty-one billion, three hundred seventy-one million, nine hundred twenty-seven thousand, four hundred thirty-two".