102688512854 has 8 divisors (see below), whose sum is σ = 154051756200. Its totient is φ = 51337927456.

The previous prime is 102688512853. The next prime is 102688512907. The reversal of 102688512854 is 458215886201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×102688512854² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102688512853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3144179 + ... + 3176670.

It is an arithmetic number, because the mean of its divisors is an integer number (19256469525).

Almost surely, 2^102688512854 is an apocalyptic number.

102688512854 is a deficient number, since it is larger than the sum of its proper divisors (51363243346).

102688512854 is an equidigital number, since it uses as much as digits as its factorization.

102688512854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6328974.

The product of its (nonzero) digits is 1228800, while the sum is 50.

The spelling of 102688512854 in words is "one hundred two billion, six hundred eighty-eight million, five hundred twelve thousand, eight hundred fifty-four".