385836774049980 has 120 divisors (see below), whose sum is σ = 1320419182365360. Its totient is φ = 93536187644160.

The previous prime is 385836774049943. The next prime is 385836774050087. The reversal of 385836774049980 is 89940477638583.

It is a happy number.

385836774049980 is a `hidden beast` number, since 3 + 8 + 5 + 8 + 3 + 6 + 7 + 7 + 40 + 499 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a self number, because there is not a number n which added to its sum of digits gives 385836774049980.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10825929825 + ... + 10825965464.

It is an arithmetic number, because the mean of its divisors is an integer number (11003493186378).

Almost surely, 2^{385836774049980} is an apocalyptic number.

385836774049980 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

385836774049980 is an abundant number, since it is smaller than the sum of its proper divisors (934582408315380).

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

385836774049980 is a wasteful number, since it uses less digits than its factorization.

385836774049980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21651895321 (or 21651895310 counting only the distinct ones).

The product of its (nonzero) digits is 8778792960, while the sum is 81.

The spelling of 385836774049980 in words is "three hundred eighty-five trillion, eight hundred thirty-six billion, seven hundred seventy-four million, forty-nine thousand, nine hundred eighty".