491839313429 has 8 divisors (see below), whose sum is σ = 505214730240. Its totient is φ = 478468236816.

The previous prime is 491839313377. The next prime is 491839313431. The reversal of 491839313429 is 924313938194.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-491839313429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491839313479) 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, 854669 + ... + 1309250.

It is an arithmetic number, because the mean of its divisors is an integer number (63151841280).

Almost surely, 2^491839313429 is an apocalyptic number.

It is an amenable number.

491839313429 is a deficient number, since it is larger than the sum of its proper divisors (13375416811).

491839313429 is a wasteful number, since it uses less digits than its factorization.

491839313429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2170099.

The product of its digits is 5038848, while the sum is 56.

The spelling of 491839313429 in words is "four hundred ninety-one billion, eight hundred thirty-nine million, three hundred thirteen thousand, four hundred twenty-nine".