61372686552 has 16 divisors (see below), whose sum is σ = 153431716440. Its totient is φ = 20457562176.

The previous prime is 61372686547. The next prime is 61372686553. The reversal of 61372686552 is 25568627316.

It is a super-2 number, since 2×61372686552² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 61372686495 and 61372686504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61372686553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1278597613 + ... + 1278597660.

Almost surely, 2^61372686552 is an apocalyptic number.

It is an amenable number.

61372686552 is an abundant number, since it is smaller than the sum of its proper divisors (92059029888).

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

61372686552 is a wasteful number, since it uses less digits than its factorization.

61372686552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2557195282 (or 2557195278 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 51.

The spelling of 61372686552 in words is "sixty-one billion, three hundred seventy-two million, six hundred eighty-six thousand, five hundred fifty-two".