37943918316 has 72 divisors (see below), whose sum is σ = 99513383424. Its totient is φ = 12641968080.

The previous prime is 37943918303. The next prime is 37943918323. The reversal of 37943918316 is 61381934973.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2347101 + ... + 2363211.

Almost surely, 2^37943918316 is an apocalyptic number.

37943918316 is a gapful number since it is divisible by the number (36) 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 37943918316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49756691712).

37943918316 is an abundant number, since it is smaller than the sum of its proper divisors (61569465108).

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

37943918316 is a wasteful number, since it uses less digits than its factorization.

37943918316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18553 (or 18539 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The spelling of 37943918316 in words is "thirty-seven billion, nine hundred forty-three million, nine hundred eighteen thousand, three hundred sixteen".