8538762599640 has 1536 divisors, whose sum is σ = 36947744870400. Its totient is φ = 1659251589120.

The previous prime is 8538762599611. The next prime is 8538762599669. The reversal of 8538762599640 is 469952678358.

It is a happy number.

8538762599640 is a `hidden beast` number, since 8 + 538 + 7 + 6 + 25 + 9 + 9 + 64 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (8538762599611) and next prime (8538762599669).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 5651066485 + ... + 5651067995.

It is an arithmetic number, because the mean of its divisors is an integer number (24054521400).

Almost surely, 2^{8538762599640} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8538762599640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18473872435200).

8538762599640 is an abundant number, since it is smaller than the sum of its proper divisors (28408982270760).

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

8538762599640 is a wasteful number, since it uses less digits than its factorization.

8538762599640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777 (or 1770 counting only the distinct ones).

The product of its (nonzero) digits is 783820800, while the sum is 72.

The spelling of 8538762599640 in words is "eight trillion, five hundred thirty-eight billion, seven hundred sixty-two million, five hundred ninety-nine thousand, six hundred forty".