13019774823 has 48 divisors (see below), whose sum is σ = 21039258240. Its totient is φ = 7690334400.

The previous prime is 13019774821. The next prime is 13019774839. The reversal of 13019774823 is 32847791031.

It is not a de Polignac number, because 13019774823 - 2¹ = 13019774821 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13019774821) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2087073 + ... + 2093301.

It is an arithmetic number, because the mean of its divisors is an integer number (438317880).

Almost surely, 2^13019774823 is an apocalyptic number.

13019774823 is a deficient number, since it is larger than the sum of its proper divisors (8019483417).

13019774823 is a wasteful number, since it uses less digits than its factorization.

13019774823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6780 (or 6777 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The spelling of 13019774823 in words is "thirteen billion, nineteen million, seven hundred seventy-four thousand, eight hundred twenty-three".