326181025809793 has 32 divisors (see below), whose sum is σ = 407071461888000. Its totient is φ = 253914418033920.

The previous prime is 326181025809791. The next prime is 326181025809823. The reversal of 326181025809793 is 397908520181623.

It is not a de Polignac number, because 326181025809793 - 2¹ = 326181025809791 is a prime.

It is a super-2 number, since 2×326181025809793² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (326181025809791) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4650459318 + ... + 4650529456.

It is an arithmetic number, because the mean of its divisors is an integer number (12720983184000).

Almost surely, 2^{326181025809793} is an apocalyptic number.

It is an amenable number.

326181025809793 is a deficient number, since it is larger than the sum of its proper divisors (80890436078207).

326181025809793 is a wasteful number, since it uses less digits than its factorization.

326181025809793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129325.

The product of its (nonzero) digits is 39191040, while the sum is 64.

The spelling of 326181025809793 in words is "three hundred twenty-six trillion, one hundred eighty-one billion, twenty-five million, eight hundred nine thousand, seven hundred ninety-three".