128014121872658 has 32 divisors (see below), whose sum is σ = 223941729849600. Its totient is φ = 54860666364000.

The previous prime is 128014121872603. The next prime is 128014121872711. The reversal of 128014121872658 is 856278121410821.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10631510 + ... + 19210862.

It is an arithmetic number, because the mean of its divisors is an integer number (6998179057800).

Almost surely, 2^{128014121872658} is an apocalyptic number.

128014121872658 is a deficient number, since it is larger than the sum of its proper divisors (95927607976942).

128014121872658 is an equidigital number, since it uses as much as digits as its factorization.

128014121872658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8601127 (or 8601113 counting only the distinct ones).

The product of its (nonzero) digits is 3440640, while the sum is 56.

The spelling of 128014121872658 in words is "one hundred twenty-eight trillion, fourteen billion, one hundred twenty-one million, eight hundred seventy-two thousand, six hundred fifty-eight".