6373626981 has 4 divisors (see below), whose sum is σ = 8498169312. Its totient is φ = 4249084652.

The previous prime is 6373626943. The next prime is 6373627003. The reversal of 6373626981 is 1896263736.

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 not a de Polignac number, because 6373626981 - 2¹⁹ = 6373102693 is a prime.

It is a super-2 number, since 2×6373626981² = 81246241785862348722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6373626911) 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, 1062271161 + ... + 1062271166.

It is an arithmetic number, because the mean of its divisors is an integer number (2124542328).

Almost surely, 2^6373626981 is an apocalyptic number.

It is an amenable number.

6373626981 is a deficient number, since it is larger than the sum of its proper divisors (2124542331).

6373626981 is a wasteful number, since it uses less digits than its factorization.

6373626981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124542330.

The product of its digits is 1959552, while the sum is 51.

The square root of 6373626981 is about 79834.9984718482. The cubic root of 6373626981 is about 1854.0817575711.

The spelling of 6373626981 in words is "six billion, three hundred seventy-three million, six hundred twenty-six thousand, nine hundred eighty-one".