323347640391 has 8 divisors (see below), whose sum is σ = 479033541360. Its totient is φ = 215565093576.

The previous prime is 323347640383. The next prime is 323347640419. The reversal of 323347640391 is 193046743323.

It is a happy number.

323347640391 is a `hidden beast` number, since 3 + 233 + 4 + 7 + 6 + 403 + 9 + 1 = 666.

It is not a de Polignac number, because 323347640391 - 2³ = 323347640383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323347640491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5987919240 + ... + 5987919293.

It is an arithmetic number, because the mean of its divisors is an integer number (59879192670).

Almost surely, 2^323347640391 is an apocalyptic number.

323347640391 is a deficient number, since it is larger than the sum of its proper divisors (155685900969).

323347640391 is a wasteful number, since it uses less digits than its factorization.

323347640391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11975838542 (or 11975838536 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 45.

The spelling of 323347640391 in words is "three hundred twenty-three billion, three hundred forty-seven million, six hundred forty thousand, three hundred ninety-one".