38491272860 has 24 divisors (see below), whose sum is σ = 81008566800. Its totient is φ = 15362815104.

The previous prime is 38491272773. The next prime is 38491272893. The reversal of 38491272860 is 6827219483.

It is a junction number, because it is equal to n+sod(n) for n = 38491272799 and 38491272808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2096510 + ... + 2114789.

It is an arithmetic number, because the mean of its divisors is an integer number (3375356950).

Almost surely, 2^38491272860 is an apocalyptic number.

It is an amenable number.

38491272860 is an abundant number, since it is smaller than the sum of its proper divisors (42517293940).

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

38491272860 is a wasteful number, since it uses less digits than its factorization.

38491272860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4211765 (or 4211763 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 50.

The spelling of 38491272860 in words is "thirty-eight billion, four hundred ninety-one million, two hundred seventy-two thousand, eight hundred sixty".