9038855657 has 16 divisors (see below), whose sum is σ = 9842946960. Its totient is φ = 8299938816.

The previous prime is 9038855611. The next prime is 9038855671. The reversal of 9038855657 is 7565588309.

It can be written as a sum of positive squares in 8 ways, for example, as 4002966361 + 5035889296 = 63269^2 + 70964^2 .

It is not a de Polignac number, because 9038855657 - 2¹² = 9038851561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9038855687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413363 + ... + 434679.

It is an arithmetic number, because the mean of its divisors is an integer number (615184185).

Almost surely, 2^9038855657 is an apocalyptic number.

It is an amenable number.

9038855657 is a deficient number, since it is larger than the sum of its proper divisors (804091303).

9038855657 is a wasteful number, since it uses less digits than its factorization.

9038855657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21549 (or 21523 counting only the distinct ones).

The product of its (nonzero) digits is 9072000, while the sum is 56.

The square root of 9038855657 is about 95072.8965426004. The cubic root of 9038855657 is about 2083.0729708093.

The spelling of 9038855657 in words is "nine billion, thirty-eight million, eight hundred fifty-five thousand, six hundred fifty-seven".