37664275968 has 640 divisors, whose sum is σ = 129398860800. Its totient is φ = 10794516480.

The previous prime is 37664275963. The next prime is 37664275997. The reversal of 37664275968 is 86957246673.

37664275968 is a `hidden beast` number, since 37 + 6 + 6 + 4 + 2 + 7 + 596 + 8 = 666.

Its product of digits (91445760) is a multiple of the sum of its prime divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37664275963) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 423194068 + ... + 423194156.

It is an arithmetic number, because the mean of its divisors is an integer number (202185720).

Almost surely, 2^37664275968 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 37664275968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64699430400).

37664275968 is an abundant number, since it is smaller than the sum of its proper divisors (91734584832).

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

37664275968 is an equidigital number, since it uses as much as digits as its factorization.

37664275968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 128 counting only the distinct ones).

The product of its digits is 91445760, while the sum is 63.

The spelling of 37664275968 in words is "thirty-seven billion, six hundred sixty-four million, two hundred seventy-five thousand, nine hundred sixty-eight".