128858172049043 has 2 divisors, whose sum is σ = 128858172049044. Its totient is φ = 128858172049042.

The previous prime is 128858172048979. The next prime is 128858172049111. The reversal of 128858172049043 is 340940271858821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128858172049043 - 2⁶ = 128858172048979 is a prime.

It is a super-2 number, since 2×128858172049043² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (128858172049843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64429086024521 + 64429086024522.

It is an arithmetic number, because the mean of its divisors is an integer number (64429086024522).

Almost surely, 2^{128858172049043} is an apocalyptic number.

128858172049043 is a deficient number, since it is larger than the sum of its proper divisors (1).

128858172049043 is an equidigital number, since it uses as much as digits as its factorization.

128858172049043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30965760, while the sum is 62.

The spelling of 128858172049043 in words is "one hundred twenty-eight trillion, eight hundred fifty-eight billion, one hundred seventy-two million, forty-nine thousand, forty-three".