1476643868849 has 4 divisors (see below), whose sum is σ = 1479109051200. Its totient is φ = 1474178686500.

The previous prime is 1476643868831. The next prime is 1476643868857. The reversal of 1476643868849 is 9488683466741.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1476643868849 is a prime.

It is a super-4 number, since 4×1476643868849⁴ (a number of 50 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1476643868449) 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, 1232590277 + ... + 1232591474.

It is an arithmetic number, because the mean of its divisors is an integer number (369777262800).

Almost surely, 2^{1476643868849} is an apocalyptic number.

It is an amenable number.

1476643868849 is a deficient number, since it is larger than the sum of its proper divisors (2465182351).

1476643868849 is an equidigital number, since it uses as much as digits as its factorization.

1476643868849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2465182350.

The product of its digits is 1337720832, while the sum is 74.

The spelling of 1476643868849 in words is "one trillion, four hundred seventy-six billion, six hundred forty-three million, eight hundred sixty-eight thousand, eight hundred forty-nine".