128760504621 has 8 divisors (see below), whose sum is σ = 196206483264. Its totient is φ = 73577431200.

The previous prime is 128760504619. The next prime is 128760504641. The reversal of 128760504621 is 126405067821.

It is a happy number.

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

It is not a de Polignac number, because 128760504621 - 2¹ = 128760504619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128760504641) 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, 3065726280 + ... + 3065726321.

It is an arithmetic number, because the mean of its divisors is an integer number (24525810408).

Almost surely, 2^128760504621 is an apocalyptic number.

It is an amenable number.

128760504621 is a deficient number, since it is larger than the sum of its proper divisors (67445978643).

128760504621 is an equidigital number, since it uses as much as digits as its factorization.

128760504621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6131452611.

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 128760504621 in words is "one hundred twenty-eight billion, seven hundred sixty million, five hundred four thousand, six hundred twenty-one".