37520138740 has 96 divisors (see below), whose sum is σ = 94586978304. Its totient is φ = 12223094400.

The previous prime is 37520138737. The next prime is 37520138759. The reversal of 37520138740 is 4783102573.

It is a happy number.

It is a super-2 number, since 2×37520138740² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 37520138693 and 37520138702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 447637 + ... + 524803.

It is an arithmetic number, because the mean of its divisors is an integer number (985281024).

Almost surely, 2^37520138740 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 37520138740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47293489152).

37520138740 is an abundant number, since it is smaller than the sum of its proper divisors (57066839564).

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

37520138740 is a wasteful number, since it uses less digits than its factorization.

37520138740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77357 (or 77355 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 37520138740 in words is "thirty-seven billion, five hundred twenty million, one hundred thirty-eight thousand, seven hundred forty".