128346153990 has 16 divisors (see below), whose sum is σ = 308030769648. Its totient is φ = 34225641056.

The previous prime is 128346153983. The next prime is 128346154007. The reversal of 128346153990 is 99351643821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2139102537 + ... + 2139102596.

It is an arithmetic number, because the mean of its divisors is an integer number (19251923103).

Almost surely, 2^128346153990 is an apocalyptic number.

128346153990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128346153990 is an abundant number, since it is smaller than the sum of its proper divisors (179684615658).

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

128346153990 is a wasteful number, since it uses less digits than its factorization.

128346153990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4278205143.

The product of its (nonzero) digits is 1399680, while the sum is 51.

The spelling of 128346153990 in words is "one hundred twenty-eight billion, three hundred forty-six million, one hundred fifty-three thousand, nine hundred ninety".