128056038390 has 96 divisors (see below), whose sum is σ = 380617436160. Its totient is φ = 29261639232.

The previous prime is 128056038379. The next prime is 128056038391. The reversal of 128056038390 is 93830650821.

It is a happy number.

128056038390 is a `hidden beast` number, since 1 + 2 + 8 + 0 + 5 + 603 + 8 + 39 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128056038391) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2346231 + ... + 2400189.

It is an arithmetic number, because the mean of its divisors is an integer number (3964764960).

Almost surely, 2^128056038390 is an apocalyptic number.

128056038390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128056038390 is an abundant number, since it is smaller than the sum of its proper divisors (252561397770).

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

128056038390 is a wasteful number, since it uses less digits than its factorization.

128056038390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57746 (or 57743 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 128056038390 in words is "one hundred twenty-eight billion, fifty-six million, thirty-eight thousand, three hundred ninety".