38307640000 has 140 divisors (see below), whose sum is σ = 108561361744. Its totient is φ = 13133952000.

The previous prime is 38307639991. The next prime is 38307640031. The reversal of 38307640000 is 4670383.

It is a tau number, because it is divible by the number of its divisors (140).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 211594 + ... + 348406.

Almost surely, 2^38307640000 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 38307640000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54280680872).

38307640000 is an abundant number, since it is smaller than the sum of its proper divisors (70253721744).

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

38307640000 is an equidigital number, since it uses as much as digits as its factorization.

38307640000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136852 (or 136827 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The spelling of 38307640000 in words is "thirty-eight billion, three hundred seven million, six hundred forty thousand".