38826503621 has 2 divisors, whose sum is σ = 38826503622. Its totient is φ = 38826503620.

The previous prime is 38826503603. The next prime is 38826503633. The reversal of 38826503621 is 12630562883.

38826503621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36337890625 + 2488612996 = 190625^2 + 49886^2 .

It is a cyclic number.

It is not a de Polignac number, because 38826503621 - 2¹⁰ = 38826502597 is a prime.

It is a super-2 number, since 2×38826503621² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38826503321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19413251810 + 19413251811.

It is an arithmetic number, because the mean of its divisors is an integer number (19413251811).

Almost surely, 2^38826503621 is an apocalyptic number.

It is an amenable number.

38826503621 is a deficient number, since it is larger than the sum of its proper divisors (1).

38826503621 is an equidigital number, since it uses as much as digits as its factorization.

38826503621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 38826503621 in words is "thirty-eight billion, eight hundred twenty-six million, five hundred three thousand, six hundred twenty-one".