37081215990 has 240 divisors, whose sum is σ = 124909746192. Its totient is φ = 7823620224.

The previous prime is 37081215989. The next prime is 37081216001. The reversal of 37081215990 is 9951218073.

37081215990 is a `hidden beast` number, since 37 + 0 + 8 + 1 + 21 + 599 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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 119 ways as a sum of consecutive naturals, for example, 480037 + ... + 551903.

Almost surely, 2^37081215990 is an apocalyptic number.

37081215990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 37081215990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62454873096).

37081215990 is an abundant number, since it is smaller than the sum of its proper divisors (87828530202).

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

37081215990 is a wasteful number, since it uses less digits than its factorization.

37081215990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71913 (or 71897 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The spelling of 37081215990 in words is "thirty-seven billion, eighty-one million, two hundred fifteen thousand, nine hundred ninety".