101902420488906 has 24 divisors (see below), whose sum is σ = 220794383478240. Its totient is φ = 33966580303656.

The previous prime is 101902420488889. The next prime is 101902420488991. The reversal of 101902420488906 is 609884024209101.

It is a happy number.

101902420488906 is a `hidden beast` number, since 1 + 0 + 1 + 90 + 2 + 420 + 48 + 8 + 90 + 6 = 666.

101902420488906 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 73729000 + ... + 75098403.

It is an arithmetic number, because the mean of its divisors is an integer number (9199765978260).

Almost surely, 2^{101902420488906} is an apocalyptic number.

101902420488906 is an abundant number, since it is smaller than the sum of its proper divisors (118891962989334).

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

101902420488906 is a wasteful number, since it uses less digits than its factorization.

101902420488906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148865450 (or 148865447 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The spelling of 101902420488906 in words is "one hundred one trillion, nine hundred two billion, four hundred twenty million, four hundred eighty-eight thousand, nine hundred six".