38228521871 has 2 divisors, whose sum is σ = 38228521872. Its totient is φ = 38228521870.

The previous prime is 38228521861. The next prime is 38228521879. The reversal of 38228521871 is 17812582283.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38228521871 - 2²⁶ = 38161413007 is a prime.

It is a super-2 number, since 2×38228521871² (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 (38228521879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19114260935 + 19114260936.

It is an arithmetic number, because the mean of its divisors is an integer number (19114260936).

Almost surely, 2^38228521871 is an apocalyptic number.

38228521871 is a deficient number, since it is larger than the sum of its proper divisors (1).

38228521871 is an equidigital number, since it uses as much as digits as its factorization.

38228521871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 430080, while the sum is 47.

The spelling of 38228521871 in words is "thirty-eight billion, two hundred twenty-eight million, five hundred twenty-one thousand, eight hundred seventy-one".