38246071371821 has 2 divisors, whose sum is σ = 38246071371822. Its totient is φ = 38246071371820.

The previous prime is 38246071371811. The next prime is 38246071371839. The reversal of 38246071371821 is 12817317064283.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21354472788100 + 16891598583721 = 4621090^2 + 4109939^2 .

It is a cyclic number.

It is not a de Polignac number, because 38246071371821 - 2²⁶ = 38246004262957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38246071371811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19123035685910 + 19123035685911.

It is an arithmetic number, because the mean of its divisors is an integer number (19123035685911).

Almost surely, 2^{38246071371821} is an apocalyptic number.

It is an amenable number.

38246071371821 is a deficient number, since it is larger than the sum of its proper divisors (1).

38246071371821 is an equidigital number, since it uses as much as digits as its factorization.

38246071371821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2709504, while the sum is 53.

The spelling of 38246071371821 in words is "thirty-eight trillion, two hundred forty-six billion, seventy-one million, three hundred seventy-one thousand, eight hundred twenty-one".