109027064640 has 672 divisors, whose sum is σ = 399328721280. Its totient is φ = 25119424512.

The previous prime is 109027064623. The next prime is 109027064647. The reversal of 109027064640 is 46460720901.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109027064647) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 348329124 + ... + 348329436.

Almost surely, 2^109027064640 is an apocalyptic number.

109027064640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109027064640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199664360640).

109027064640 is an abundant number, since it is smaller than the sum of its proper divisors (290301656640).

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

109027064640 is a wasteful number, since it uses less digits than its factorization.

109027064640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The spelling of 109027064640 in words is "one hundred nine billion, twenty-seven million, sixty-four thousand, six hundred forty".