128154257607 has 8 divisors (see below), whose sum is σ = 171064987776. Its totient is φ = 85339849592.

The previous prime is 128154257603. The next prime is 128154257629. The reversal of 128154257607 is 706752451821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128154257607 - 2² = 128154257603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128154257603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24077433 + ... + 24082754.

It is an arithmetic number, because the mean of its divisors is an integer number (21383123472).

Almost surely, 2^128154257607 is an apocalyptic number.

128154257607 is a deficient number, since it is larger than the sum of its proper divisors (42910730169).

128154257607 is an equidigital number, since it uses as much as digits as its factorization.

128154257607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48161077.

The product of its (nonzero) digits is 940800, while the sum is 48.

The spelling of 128154257607 in words is "one hundred twenty-eight billion, one hundred fifty-four million, two hundred fifty-seven thousand, six hundred seven".