102128634663 has 24 divisors (see below), whose sum is σ = 152500232304. Its totient is φ = 60728279040.

The previous prime is 102128634607. The next prime is 102128634667. The reversal of 102128634663 is 366436821201.

It is not a de Polignac number, because 102128634663 - 2⁶ = 102128634599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102128634667) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2634970 + ... + 2673447.

It is an arithmetic number, because the mean of its divisors is an integer number (6354176346).

Almost surely, 2^102128634663 is an apocalyptic number.

102128634663 is a deficient number, since it is larger than the sum of its proper divisors (50371597641).

102128634663 is a wasteful number, since it uses less digits than its factorization.

102128634663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5308495 (or 5308484 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 42.

The spelling of 102128634663 in words is "one hundred two billion, one hundred twenty-eight million, six hundred thirty-four thousand, six hundred sixty-three".