37966991832 has 864 divisors, whose sum is σ = 143808537600. Its totient is φ = 8981280000.

The previous prime is 37966991827. The next prime is 37966991891. The reversal of 37966991832 is 23819966973.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

Its product of digits (26453952) is a multiple of the sum of its prime divisors (224).

It is a self number, because there is not a number n which added to its sum of digits gives 37966991832.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 251436957 + ... + 251437107.

Almost surely, 2^37966991832 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 37966991832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71904268800).

37966991832 is an abundant number, since it is smaller than the sum of its proper divisors (105841545768).

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

37966991832 is a wasteful number, since it uses less digits than its factorization.

37966991832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249 (or 224 counting only the distinct ones).

The product of its digits is 26453952, while the sum is 63.

The spelling of 37966991832 in words is "thirty-seven billion, nine hundred sixty-six million, nine hundred ninety-one thousand, eight hundred thirty-two".