186795643980 has 48 divisors (see below), whose sum is σ = 570575787264. Its totient is φ = 45283792320.

The previous prime is 186795643943. The next prime is 186795644027. The reversal of 186795643980 is 89346597681.

It is a super-2 number, since 2×186795643980² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141511192 + ... + 141512511.

It is an arithmetic number, because the mean of its divisors is an integer number (11886995568).

Almost surely, 2^186795643980 is an apocalyptic number.

186795643980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

186795643980 is an abundant number, since it is smaller than the sum of its proper divisors (383780143284).

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

186795643980 is a wasteful number, since it uses less digits than its factorization.

186795643980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283023726 (or 283023724 counting only the distinct ones).

The product of its (nonzero) digits is 78382080, while the sum is 66.

The spelling of 186795643980 in words is "one hundred eighty-six billion, seven hundred ninety-five million, six hundred forty-three thousand, nine hundred eighty".