102107678490 has 32 divisors (see below), whose sum is σ = 272287143360. Its totient is φ = 27228714192.

The previous prime is 102107678473. The next prime is 102107678501. The reversal of 102107678490 is 94876701201.

It is a happy number.

102107678490 is a `hidden beast` number, since 1 + 0 + 21 + 0 + 76 + 78 + 490 = 666.

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189088024 + ... + 189088563.

It is an arithmetic number, because the mean of its divisors is an integer number (8508973230).

Almost surely, 2^102107678490 is an apocalyptic number.

102107678490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102107678490 is an abundant number, since it is smaller than the sum of its proper divisors (170179464870).

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

102107678490 is a wasteful number, since it uses less digits than its factorization.

102107678490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378176603 (or 378176597 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The spelling of 102107678490 in words is "one hundred two billion, one hundred seven million, six hundred seventy-eight thousand, four hundred ninety".