37921839018 has 96 divisors (see below), whose sum is σ = 89412107904. Its totient is φ = 10689896448.

The previous prime is 37921839017. The next prime is 37921839029. The reversal of 37921839018 is 81093812973.

It is not an unprimeable number, because it can be changed into a prime (37921839013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10064971 + ... + 10068737.

It is an arithmetic number, because the mean of its divisors is an integer number (931376124).

Almost surely, 2^37921839018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 37921839018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44706053952).

37921839018 is an abundant number, since it is smaller than the sum of its proper divisors (51490268886).

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

37921839018 is a wasteful number, since it uses less digits than its factorization.

37921839018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4236 (or 4229 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 51.

The spelling of 37921839018 in words is "thirty-seven billion, nine hundred twenty-one million, eight hundred thirty-nine thousand, eighteen".