389278649088 has 1440 divisors, whose sum is σ = 1547100656640. Its totient is φ = 94858739712.

The previous prime is 389278649059. The next prime is 389278649093. The reversal of 389278649088 is 880946872983.

389278649088 is a `hidden beast` number, since 38 + 9 + 27 + 8 + 6 + 490 + 88 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 16925158645 + ... + 16925158667.

It is an arithmetic number, because the mean of its divisors is an integer number (1074375456).

Almost surely, 2^389278649088 is an apocalyptic number.

389278649088 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389278649088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (773550328320).

389278649088 is an abundant number, since it is smaller than the sum of its proper divisors (1157822007552).

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

389278649088 is an equidigital number, since it uses as much as digits as its factorization.

389278649088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 334430208, while the sum is 72.

The spelling of 389278649088 in words is "three hundred eighty-nine billion, two hundred seventy-eight million, six hundred forty-nine thousand, eighty-eight".