321402929479 has 4 divisors (see below), whose sum is σ = 321404486760. Its totient is φ = 321401372200.

The previous prime is 321402929429. The next prime is 321402929489. The reversal of 321402929479 is 974929204123.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 321402929479 - 2¹⁷ = 321402798407 is a prime.

It is a super-2 number, since 2×321402929479² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321402929429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 411289 + ... + 901090.

It is an arithmetic number, because the mean of its divisors is an integer number (80351121690).

Almost surely, 2^321402929479 is an apocalyptic number.

321402929479 is a deficient number, since it is larger than the sum of its proper divisors (1557281).

321402929479 is a wasteful number, since it uses less digits than its factorization.

321402929479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557280.

The product of its (nonzero) digits is 1959552, while the sum is 52.

The spelling of 321402929479 in words is "three hundred twenty-one billion, four hundred two million, nine hundred twenty-nine thousand, four hundred seventy-nine".