38270473728 has 80 divisors (see below), whose sum is σ = 102076609536. Its totient is φ = 12741601280.

The previous prime is 38270473727. The next prime is 38270473777. The reversal of 38270473728 is 82737407283.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38270473727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1311133 + ... + 1340003.

Almost surely, 2^38270473728 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 38270473728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51038304768).

38270473728 is an abundant number, since it is smaller than the sum of its proper divisors (63806135808).

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

38270473728 is an equidigital number, since it uses as much as digits as its factorization.

38270473728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29755 (or 29739 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 51.

The spelling of 38270473728 in words is "thirty-eight billion, two hundred seventy million, four hundred seventy-three thousand, seven hundred twenty-eight".