321413807897 has 16 divisors (see below), whose sum is σ = 395713812480. Its totient is φ = 254223410112.

The previous prime is 321413807861. The next prime is 321413807903. The reversal of 321413807897 is 798708314123.

It is not a de Polignac number, because 321413807897 - 2¹⁸ = 321413545753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (321413804897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285113 + ... + 850950.

It is an arithmetic number, because the mean of its divisors is an integer number (24732113280).

Almost surely, 2^321413807897 is an apocalyptic number.

It is an amenable number.

321413807897 is a deficient number, since it is larger than the sum of its proper divisors (74300004583).

321413807897 is a wasteful number, since it uses less digits than its factorization.

321413807897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139192.

The product of its (nonzero) digits is 2032128, while the sum is 53.

The spelling of 321413807897 in words is "three hundred twenty-one billion, four hundred thirteen million, eight hundred seven thousand, eight hundred ninety-seven".