100489449765 has 32 divisors (see below), whose sum is σ = 163064889216. Its totient is φ = 52834498560.

The previous prime is 100489449763. The next prime is 100489449787. The reversal of 100489449765 is 567944984001.

It is not a de Polignac number, because 100489449765 - 2¹ = 100489449763 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100489449761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2345062 + ... + 2387528.

It is an arithmetic number, because the mean of its divisors is an integer number (5095777788).

Almost surely, 2^100489449765 is an apocalyptic number.

100489449765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100489449765 is a deficient number, since it is larger than the sum of its proper divisors (62575439451).

100489449765 is a wasteful number, since it uses less digits than its factorization.

100489449765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44709.

The product of its (nonzero) digits is 8709120, while the sum is 57.

The spelling of 100489449765 in words is "one hundred billion, four hundred eighty-nine million, four hundred forty-nine thousand, seven hundred sixty-five".