393123084655 has 48 divisors (see below), whose sum is σ = 556522920000. Its totient is φ = 265763731968.

The previous prime is 393123084647. The next prime is 393123084671. The reversal of 393123084655 is 556480321393.

It is not a de Polignac number, because 393123084655 - 2³ = 393123084647 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a junction number, because it is equal to n+sod(n) for n = 393123084599 and 393123084608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78637846 + ... + 78642844.

It is an arithmetic number, because the mean of its divisors is an integer number (11594227500).

Almost surely, 2^393123084655 is an apocalyptic number.

393123084655 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

393123084655 is a deficient number, since it is larger than the sum of its proper divisors (163399835345).

393123084655 is a wasteful number, since it uses less digits than its factorization.

393123084655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9488 (or 9481 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 49.

The spelling of 393123084655 in words is "three hundred ninety-three billion, one hundred twenty-three million, eighty-four thousand, six hundred fifty-five".