37730987472 has 80 divisors (see below), whose sum is σ = 100190426688. Its totient is φ = 12230400000.

The previous prime is 37730987447. The next prime is 37730987473. The reversal of 37730987472 is 27478903773.

It is a happy number.

It is a super-2 number, since 2×37730987472² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37730987473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221847 + ... + 353097.

Almost surely, 2^37730987472 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 37730987472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50095213344).

37730987472 is an abundant number, since it is smaller than the sum of its proper divisors (62459439216).

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

37730987472 is a wasteful number, since it uses less digits than its factorization.

37730987472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131428 (or 131422 counting only the distinct ones).

The product of its (nonzero) digits is 12446784, while the sum is 57.

The spelling of 37730987472 in words is "thirty-seven billion, seven hundred thirty million, nine hundred eighty-seven thousand, four hundred seventy-two".