38115655405090 has 32 divisors (see below), whose sum is σ = 74014595685360. Its totient is φ = 14078679373824.

The previous prime is 38115655405043. The next prime is 38115655405099. The reversal of 38115655405090 is 9050455651183.

It can be written as a sum of positive squares in 8 ways, for example, as 29752737524449 + 8362917880641 = 5454607^2 + 2891871^2 .

It is not an unprimeable number, because it can be changed into a prime (38115655405099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2115177195 + ... + 2115195214.

Almost surely, 2^{38115655405090} is an apocalyptic number.

38115655405090 is a deficient number, since it is larger than the sum of its proper divisors (35898940280270).

38115655405090 is a wasteful number, since it uses less digits than its factorization.

38115655405090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4230372486.

The product of its (nonzero) digits is 3240000, while the sum is 52.

The spelling of 38115655405090 in words is "thirty-eight trillion, one hundred fifteen billion, six hundred fifty-five million, four hundred five thousand, ninety".