38512967220 has 432 divisors, whose sum is σ = 153090362880. Its totient is φ = 7647105024.

The previous prime is 38512967219. The next prime is 38512967239. The reversal of 38512967220 is 2276921583.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 3614661 + ... + 3625299.

It is an arithmetic number, because the mean of its divisors is an integer number (354375840).

Almost surely, 2^38512967220 is an apocalyptic number.

38512967220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38512967220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76545181440).

38512967220 is an abundant number, since it is smaller than the sum of its proper divisors (114577395660).

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

38512967220 is a wasteful number, since it uses less digits than its factorization.

38512967220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10704 (or 10686 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 38512967220 in words is "thirty-eight billion, five hundred twelve million, nine hundred sixty-seven thousand, two hundred twenty".