102506678280 has 64 divisors (see below), whose sum is σ = 341688931200. Its totient is φ = 27335113920.

The previous prime is 102506678221. The next prime is 102506678297. The reversal of 102506678280 is 82876605201.

102506678280 is a `hidden beast` number, since 1 + 0 + 2 + 506 + 67 + 8 + 2 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47455716 + ... + 47457875.

It is an arithmetic number, because the mean of its divisors is an integer number (5338889550).

Almost surely, 2^102506678280 is an apocalyptic number.

102506678280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102506678280 is an abundant number, since it is smaller than the sum of its proper divisors (239182252920).

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

102506678280 is a wasteful number, since it uses less digits than its factorization.

102506678280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94913611 (or 94913601 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 102506678280 in words is "one hundred two billion, five hundred six million, six hundred seventy-eight thousand, two hundred eighty".