349174857493 has 16 divisors (see below), whose sum is σ = 435391076736. Its totient is φ = 272049186240.

The previous prime is 349174857371. The next prime is 349174857553. The reversal of 349174857493 is 394758471943.

It is a cyclic number.

It is not a de Polignac number, because 349174857493 - 2¹⁷ = 349174726421 is a prime.

It is a super-2 number, since 2×349174857493² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349174857593) 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, 315955 + ... + 893407.

It is an arithmetic number, because the mean of its divisors is an integer number (27211942296).

Almost surely, 2^349174857493 is an apocalyptic number.

It is an amenable number.

349174857493 is a deficient number, since it is larger than the sum of its proper divisors (86216219243).

349174857493 is a wasteful number, since it uses less digits than its factorization.

349174857493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585324.

The product of its digits is 91445760, while the sum is 64.

The spelling of 349174857493 in words is "three hundred forty-nine billion, one hundred seventy-four million, eight hundred fifty-seven thousand, four hundred ninety-three".