102253767920 has 20 divisors (see below), whose sum is σ = 237740010600. Its totient is φ = 40901507136.

The previous prime is 102253767919. The next prime is 102253767983. The reversal of 102253767920 is 29767352201.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×102253767920² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 639085970 + ... + 639086129.

It is an arithmetic number, because the mean of its divisors is an integer number (11887000530).

Almost surely, 2^102253767920 is an apocalyptic number.

102253767920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102253767920 is an abundant number, since it is smaller than the sum of its proper divisors (135486242680).

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

102253767920 is a wasteful number, since it uses less digits than its factorization.

102253767920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278172112 (or 1278172106 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 44.

The spelling of 102253767920 in words is "one hundred two billion, two hundred fifty-three million, seven hundred sixty-seven thousand, nine hundred twenty".