128762464901 has 32 divisors (see below), whose sum is σ = 149977251840. Its totient is φ = 108273200256.

The previous prime is 128762464891. The next prime is 128762464969. The reversal of 128762464901 is 109464267821.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128762464901 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 128762464901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128762464301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63522650 + ... + 63524676.

It is an arithmetic number, because the mean of its divisors is an integer number (4686789120).

Almost surely, 2^128762464901 is an apocalyptic number.

It is an amenable number.

128762464901 is a deficient number, since it is larger than the sum of its proper divisors (21214786939).

128762464901 is a wasteful number, since it uses less digits than its factorization.

128762464901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2793.

The product of its (nonzero) digits is 1161216, while the sum is 50.

The spelling of 128762464901 in words is "one hundred twenty-eight billion, seven hundred sixty-two million, four hundred sixty-four thousand, nine hundred one".