128916625153 has 4 divisors (see below), whose sum is σ = 128917347328. Its totient is φ = 128915902980.

The previous prime is 128916625093. The next prime is 128916625177. The reversal of 128916625153 is 351526619821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128916625153 is a prime.

It is a super-2 number, since 2×128916625153² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 128916625097 and 128916625106.

It is not an unprimeable number, because it can be changed into a prime (128916635153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123088 + ... + 522478.

It is an arithmetic number, because the mean of its divisors is an integer number (32229336832).

Almost surely, 2^128916625153 is an apocalyptic number.

It is an amenable number.

128916625153 is a deficient number, since it is larger than the sum of its proper divisors (722175).

128916625153 is an equidigital number, since it uses as much as digits as its factorization.

128916625153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722174.

The product of its digits is 777600, while the sum is 49.

The spelling of 128916625153 in words is "one hundred twenty-eight billion, nine hundred sixteen million, six hundred twenty-five thousand, one hundred fifty-three".