61831587952680 has 128 divisors (see below), whose sum is σ = 228301247865600. Its totient is φ = 13045785587712.

The previous prime is 61831587952661. The next prime is 61831587952709. The reversal of 61831587952680 is 8625978513816.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2831105745 + ... + 2831127584.

It is an arithmetic number, because the mean of its divisors is an integer number (1783603498950).

Almost surely, 2^{61831587952680} is an apocalyptic number.

61831587952680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61831587952680 is an abundant number, since it is smaller than the sum of its proper divisors (166469659912920).

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

61831587952680 is a wasteful number, since it uses less digits than its factorization.

61831587952680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5662233363 (or 5662233359 counting only the distinct ones).

The product of its (nonzero) digits is 174182400, while the sum is 69.

The spelling of 61831587952680 in words is "sixty-one trillion, eight hundred thirty-one billion, five hundred eighty-seven million, nine hundred fifty-two thousand, six hundred eighty".