38872814641 has 2 divisors, whose sum is σ = 38872814642. Its totient is φ = 38872814640.

The previous prime is 38872814611. The next prime is 38872814693. The reversal of 38872814641 is 14641827883.

It is an a-pointer prime, because the next prime (38872814693) can be obtained adding 38872814641 to its sum of digits (52).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35834490000 + 3038324641 = 189300^2 + 55121^2 .

It is a cyclic number.

It is not a de Polignac number, because 38872814641 - 2⁹ = 38872814129 is a prime.

It is a super-2 number, since 2×38872814641² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38872814611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19436407320 + 19436407321.

It is an arithmetic number, because the mean of its divisors is an integer number (19436407321).

Almost surely, 2^38872814641 is an apocalyptic number.

It is an amenable number.

38872814641 is a deficient number, since it is larger than the sum of its proper divisors (1).

38872814641 is an equidigital number, since it uses as much as digits as its factorization.

38872814641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2064384, while the sum is 52.

The spelling of 38872814641 in words is "thirty-eight billion, eight hundred seventy-two million, eight hundred fourteen thousand, six hundred forty-one".