326405713480031 has 2 divisors, whose sum is σ = 326405713480032. Its totient is φ = 326405713480030.

The previous prime is 326405713480027. The next prime is 326405713480057. The reversal of 326405713480031 is 130084317504623.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 326405713480031 - 2² = 326405713480027 is a prime.

It is a super-2 number, since 2×326405713480031² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (326405712480031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163202856740015 + 163202856740016.

It is an arithmetic number, because the mean of its divisors is an integer number (163202856740016).

Almost surely, 2^{326405713480031} is an apocalyptic number.

326405713480031 is a deficient number, since it is larger than the sum of its proper divisors (1).

326405713480031 is an equidigital number, since it uses as much as digits as its factorization.

326405713480031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The spelling of 326405713480031 in words is "three hundred twenty-six trillion, four hundred five billion, seven hundred thirteen million, four hundred eighty thousand, thirty-one".