102291868238 has 16 divisors (see below), whose sum is σ = 175363528704. Its totient is φ = 43837862040.

The previous prime is 102291868207. The next prime is 102291868277. The reversal of 102291868238 is 832868192201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359723 + ... + 577913.

It is an arithmetic number, because the mean of its divisors is an integer number (10960220544).

Almost surely, 2^102291868238 is an apocalyptic number.

102291868238 is a deficient number, since it is larger than the sum of its proper divisors (73071660466).

102291868238 is a wasteful number, since it uses less digits than its factorization.

102291868238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251687.

The product of its (nonzero) digits is 663552, while the sum is 50.

The spelling of 102291868238 in words is "one hundred two billion, two hundred ninety-one million, eight hundred sixty-eight thousand, two hundred thirty-eight".