494226619531 has 4 divisors (see below), whose sum is σ = 495642742000. Its totient is φ = 492810497064.

The previous prime is 494226619529. The next prime is 494226619643. The reversal of 494226619531 is 135916622494.

It is a happy number.

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 494226619531 - 2¹ = 494226619529 is a prime.

It is a super-2 number, since 2×494226619531² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (494226619331) 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, 708060711 + ... + 708061408.

It is an arithmetic number, because the mean of its divisors is an integer number (123910685500).

Almost surely, 2^494226619531 is an apocalyptic number.

494226619531 is a deficient number, since it is larger than the sum of its proper divisors (1416122469).

494226619531 is a wasteful number, since it uses less digits than its factorization.

494226619531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416122468.

The product of its digits is 2799360, while the sum is 52.

The spelling of 494226619531 in words is "four hundred ninety-four billion, two hundred twenty-six million, six hundred nineteen thousand, five hundred thirty-one".