101902420488897 has 40 divisors (see below), whose sum is σ = 174013629715200. Its totient is φ = 58215677697216.

The previous prime is 101902420488889. The next prime is 101902420488991. The reversal of 101902420488897 is 798884024209101.

101902420488897 is a `hidden beast` number, since 1 + 0 + 1 + 9 + 0 + 2 + 420 + 48 + 88 + 97 = 666.

It is not a de Polignac number, because 101902420488897 - 2³ = 101902420488889 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (101902420488887) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 19717372 + ... + 24342957.

It is an arithmetic number, because the mean of its divisors is an integer number (4350340742880).

Almost surely, 2^{101902420488897} is an apocalyptic number.

It is an amenable number.

101902420488897 is a deficient number, since it is larger than the sum of its proper divisors (72111209226303).

101902420488897 is an equidigital number, since it uses as much as digits as its factorization.

101902420488897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44064427 (or 44064418 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 63.

The spelling of 101902420488897 in words is "one hundred one trillion, nine hundred two billion, four hundred twenty million, four hundred eighty-eight thousand, eight hundred ninety-seven".