39478322230231 has 2 divisors, whose sum is σ = 39478322230232. Its totient is φ = 39478322230230.

The previous prime is 39478322230147. The next prime is 39478322230289. The reversal of 39478322230231 is 13203222387493.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 39478322230231 - 2¹⁵ = 39478322197463 is a prime.

It is a super-2 number, since 2×39478322230231² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39478322230031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19739161115115 + 19739161115116.

It is an arithmetic number, because the mean of its divisors is an integer number (19739161115116).

Almost surely, 2^{39478322230231} is an apocalyptic number.

39478322230231 is a deficient number, since it is larger than the sum of its proper divisors (1).

39478322230231 is an equidigital number, since it uses as much as digits as its factorization.

39478322230231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2612736, while the sum is 49.

The spelling of 39478322230231 in words is "thirty-nine trillion, four hundred seventy-eight billion, three hundred twenty-two million, two hundred thirty thousand, two hundred thirty-one".