383989886072640 has 168 divisors, whose sum is σ = 1369682442666720. Its totient is φ = 102397302931968.

The previous prime is 383989886072609. The next prime is 383989886072651. The reversal of 383989886072640 is 46270688989383.

383989886072640 is a `hidden beast` number, since 3 + 8 + 398 + 98 + 86 + 0 + 7 + 2 + 64 + 0 = 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 383989886072640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2468993010 + ... + 2469148529.

It is an arithmetic number, because the mean of its divisors is an integer number (8152871682540).

Almost surely, 2^{383989886072640} is an apocalyptic number.

383989886072640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

383989886072640 is an abundant number, since it is smaller than the sum of its proper divisors (985692556594080).

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

383989886072640 is an equidigital number, since it uses as much as digits as its factorization.

383989886072640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4938141571 (or 4938141549 counting only the distinct ones).

The product of its (nonzero) digits is 6019743744, while the sum is 81.

The spelling of 383989886072640 in words is "three hundred eighty-three trillion, nine hundred eighty-nine billion, eight hundred eighty-six million, seventy-two thousand, six hundred forty".