16457027493 has 4 divisors (see below), whose sum is σ = 21942703328. Its totient is φ = 10971351660.

The previous prime is 16457027491. The next prime is 16457027507. The reversal of 16457027493 is 39472075461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 16457027493 - 2¹ = 16457027491 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 (16457027491) 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, 2742837913 + ... + 2742837918.

It is an arithmetic number, because the mean of its divisors is an integer number (5485675832).

Almost surely, 2^16457027493 is an apocalyptic number.

It is an amenable number.

16457027493 is a deficient number, since it is larger than the sum of its proper divisors (5485675835).

16457027493 is an equidigital number, since it uses as much as digits as its factorization.

16457027493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5485675834.

The product of its (nonzero) digits is 1270080, while the sum is 48.

The spelling of 16457027493 in words is "sixteen billion, four hundred fifty-seven million, twenty-seven thousand, four hundred ninety-three".