7963444897 has 8 divisors (see below), whose sum is σ = 8172582080. Its totient is φ = 7756842960.

The previous prime is 7963444891. The next prime is 7963444943. The reversal of 7963444897 is 7984443697.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7963444897 - 2²⁷ = 7829227169 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7963444891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 627447 + ... + 640012.

It is an arithmetic number, because the mean of its divisors is an integer number (1021572760).

Almost surely, 2^7963444897 is an apocalyptic number.

It is an amenable number.

7963444897 is a deficient number, since it is larger than the sum of its proper divisors (209137183).

7963444897 is a wasteful number, since it uses less digits than its factorization.

7963444897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267623.

The product of its digits is 36578304, while the sum is 61.

The square root of 7963444897 is about 89238.1358893158. The cubic root of 7963444897 is about 1996.9490897565.

The spelling of 7963444897 in words is "seven billion, nine hundred sixty-three million, four hundred forty-four thousand, eight hundred ninety-seven".