38850769621 has 2 divisors, whose sum is σ = 38850769622. Its totient is φ = 38850769620.

The previous prime is 38850769603. The next prime is 38850769649. The reversal of 38850769621 is 12696705883.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21192080625 + 17658688996 = 145575^2 + 132886^2 .

It is a cyclic number.

It is not a de Polignac number, because 38850769621 - 2⁹ = 38850769109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38850769651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19425384810 + 19425384811.

It is an arithmetic number, because the mean of its divisors is an integer number (19425384811).

Almost surely, 2^38850769621 is an apocalyptic number.

It is an amenable number.

38850769621 is a deficient number, since it is larger than the sum of its proper divisors (1).

38850769621 is an equidigital number, since it uses as much as digits as its factorization.

38850769621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 38850769621 in words is "thirty-eight billion, eight hundred fifty million, seven hundred sixty-nine thousand, six hundred twenty-one".