38781297420 has 48 divisors (see below), whose sum is σ = 108616606560. Its totient is φ = 10338919936.

The previous prime is 38781297407. The next prime is 38781297431. The reversal of 38781297420 is 2479218783.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145666 + ... + 314294.

It is an arithmetic number, because the mean of its divisors is an integer number (2262845970).

Almost surely, 2^38781297420 is an apocalyptic number.

38781297420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38781297420 is an abundant number, since it is smaller than the sum of its proper divisors (69835309140).

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

38781297420 is a wasteful number, since it uses less digits than its factorization.

38781297420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172474 (or 172472 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 51.

The spelling of 38781297420 in words is "thirty-eight billion, seven hundred eighty-one million, two hundred ninety-seven thousand, four hundred twenty".