37830191840 has 96 divisors (see below), whose sum is σ = 102262487040. Its totient is φ = 12954991104.

The previous prime is 37830191807. The next prime is 37830191857. The reversal of 37830191840 is 4819103873.

It is a super-2 number, since 2×37830191840² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 37830191791 and 37830191800.

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 15 ways as a sum of consecutive naturals, for example, 946991 + ... + 986129.

It is an arithmetic number, because the mean of its divisors is an integer number (1065234240).

Almost surely, 2^37830191840 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 37830191840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51131243520).

37830191840 is an abundant number, since it is smaller than the sum of its proper divisors (64432295200).

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

37830191840 is a wasteful number, since it uses less digits than its factorization.

37830191840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40024 (or 40016 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 37830191840 in words is "thirty-seven billion, eight hundred thirty million, one hundred ninety-one thousand, eight hundred forty".