8138926656 has 315 divisors, whose sum is σ = 28222986099. Its totient is φ = 2312416512.

The previous prime is 8138926643. The next prime is 8138926661. The reversal of 8138926656 is 6566298318.

It is a happy number.

The square root of 8138926656 is 90216.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×8138926656² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 45468775 + ... + 45468953.

Almost surely, 2^8138926656 is an apocalyptic number.

8138926656 is the 90216-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8138926656

8138926656 is an abundant number, since it is smaller than the sum of its proper divisors (20084059443).

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

8138926656 is an equidigital number, since it uses as much as digits as its factorization.

8138926656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 191 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The cubic root of 8138926656 is about 2011.5108444647.

The spelling of 8138926656 in words is "eight billion, one hundred thirty-eight million, nine hundred twenty-six thousand, six hundred fifty-six".