61263680031 has 12 divisors (see below), whose sum is σ = 88881817752. Its totient is φ = 40662529296.

The previous prime is 61263680029. The next prime is 61263680063. The reversal of 61263680031 is 13008636216.

61263680031 is a `hidden beast` number, since 6 + 12 + 636 + 8 + 0 + 0 + 3 + 1 = 666.

61263680031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61263680031 - 2¹ = 61263680029 is a prime.

It is a super-2 number, since 2×61263680031² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61263680021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14991516 + ... + 14995601.

It is an arithmetic number, because the mean of its divisors is an integer number (7406818146).

Almost surely, 2^61263680031 is an apocalyptic number.

61263680031 is a deficient number, since it is larger than the sum of its proper divisors (27618137721).

61263680031 is a wasteful number, since it uses less digits than its factorization.

61263680031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29987350 (or 29987347 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 61263680031 in words is "sixty-one billion, two hundred sixty-three million, six hundred eighty thousand, thirty-one".