102797188254 has 24 divisors (see below), whose sum is σ = 228159614592. Its totient is φ = 33429979680.

The previous prime is 102797188187. The next prime is 102797188297. The reversal of 102797188254 is 452881797201.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

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 102797188254.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69645054 + ... + 69646529.

It is an arithmetic number, because the mean of its divisors is an integer number (9506650608).

Almost surely, 2^102797188254 is an apocalyptic number.

102797188254 is an abundant number, since it is smaller than the sum of its proper divisors (125362426338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102797188254 is a wasteful number, since it uses less digits than its factorization.

102797188254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139291632 (or 139291629 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 54.

The spelling of 102797188254 in words is "one hundred two billion, seven hundred ninety-seven million, one hundred eighty-eight thousand, two hundred fifty-four".