38831542780 has 24 divisors (see below), whose sum is σ = 81552410352. Its totient is φ = 15531441792.

The previous prime is 38831542703. The next prime is 38831542801. The reversal of 38831542780 is 8724513883.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227544 + ... + 359776.

It is an arithmetic number, because the mean of its divisors is an integer number (3398017098).

Almost surely, 2^38831542780 is an apocalyptic number.

It is an amenable number.

38831542780 is an abundant number, since it is smaller than the sum of its proper divisors (42720867572).

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

38831542780 is a wasteful number, since it uses less digits than its factorization.

38831542780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146925 (or 146923 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 49.

The spelling of 38831542780 in words is "thirty-eight billion, eight hundred thirty-one million, five hundred forty-two thousand, seven hundred eighty".