37138395648 has 160 divisors (see below), whose sum is σ = 101827357632. Its totient is φ = 12020940800.

The previous prime is 37138395643. The next prime is 37138395649. The reversal of 37138395648 is 84659383173.

It is not an unprimeable number, because it can be changed into a prime (37138395643) 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, 14672143 + ... + 14674673.

Almost surely, 2^37138395648 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 37138395648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50913678816).

37138395648 is an abundant number, since it is smaller than the sum of its proper divisors (64688961984).

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

37138395648 is a wasteful number, since it uses less digits than its factorization.

37138395648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2826 (or 2810 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 57.

The spelling of 37138395648 in words is "thirty-seven billion, one hundred thirty-eight million, three hundred ninety-five thousand, six hundred forty-eight".