13257227734 has 4 divisors (see below), whose sum is σ = 19885841604. Its totient is φ = 6628613866.

The previous prime is 13257227701. The next prime is 13257227777. The reversal of 13257227734 is 43772275231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43772275231 = 2797 ⋅15649723.

It is a super-2 number, since 2×13257227734² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3314306932 + ... + 3314306935.

It is an arithmetic number, because the mean of its divisors is an integer number (4971460401).

Almost surely, 2^13257227734 is an apocalyptic number.

13257227734 is a deficient number, since it is larger than the sum of its proper divisors (6628613870).

13257227734 is an equidigital number, since it uses as much as digits as its factorization.

13257227734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6628613869.

The product of its digits is 493920, while the sum is 43.

The spelling of 13257227734 in words is "thirteen billion, two hundred fifty-seven million, two hundred twenty-seven thousand, seven hundred thirty-four".