13147443751 has 4 divisors (see below), whose sum is σ = 14158785592. Its totient is φ = 12136101912.

The previous prime is 13147443713. The next prime is 13147443823. The reversal of 13147443751 is 15734474131.

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 13147443751 - 2²⁹ = 12610572839 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 (13147446751) 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, 505670901 + ... + 505670926.

It is an arithmetic number, because the mean of its divisors is an integer number (3539696398).

Almost surely, 2^13147443751 is an apocalyptic number.

13147443751 is a deficient number, since it is larger than the sum of its proper divisors (1011341841).

13147443751 is a wasteful number, since it uses less digits than its factorization.

13147443751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011341840.

The product of its digits is 141120, while the sum is 40.

The spelling of 13147443751 in words is "thirteen billion, one hundred forty-seven million, four hundred forty-three thousand, seven hundred fifty-one".