494949393949431 has 16 divisors (see below), whose sum is σ = 676163404113120. Its totient is φ = 321854036628480.

The previous prime is 494949393949393. The next prime is 494949393949463. The reversal of 494949393949431 is 134949393949494.

It is not a de Polignac number, because 494949393949431 - 2¹⁴ = 494949393933047 is a prime.

It is a super-2 number, since 2×494949393949431² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494949393949331) 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, 401058760 + ... + 402290973.

It is an arithmetic number, because the mean of its divisors is an integer number (42260212757070).

Almost surely, 2^{494949393949431} is an apocalyptic number.

494949393949431 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

494949393949431 is a deficient number, since it is larger than the sum of its proper divisors (181214010163689).

494949393949431 is a wasteful number, since it uses less digits than its factorization.

494949393949431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803354786.

The product of its digits is 14693280768, while the sum is 84.

The spelling of 494949393949431 in words is "four hundred ninety-four trillion, nine hundred forty-nine billion, three hundred ninety-three million, nine hundred forty-nine thousand, four hundred thirty-one".