7642979121963 has 6 divisors (see below), whose sum is σ = 10190645213844. Its totient is φ = 5095316222364.

The previous prime is 7642979121923. The next prime is 7642979122027. The reversal of 7642979121963 is 3691219792467.

It is not a de Polignac number, because 7642979121963 - 2¹² = 7642979117867 is a prime.

It is a super-3 number, since 3×7642979121963³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7642979121894 and 7642979121903.

It is not an unprimeable number, because it can be changed into a prime (7642979121923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3990348 + ... + 5586486.

It is an arithmetic number, because the mean of its divisors is an integer number (1698440868974).

Almost surely, 2^{7642979121963} is an apocalyptic number.

7642979121963 is a deficient number, since it is larger than the sum of its proper divisors (2547666091881).

7642979121963 is an frugal number, since it uses more digits than its factorization.

7642979121963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3192281 (or 1596142 counting only the distinct ones).

The product of its digits is 61725888, while the sum is 66.

The spelling of 7642979121963 in words is "seven trillion, six hundred forty-two billion, nine hundred seventy-nine million, one hundred twenty-one thousand, nine hundred sixty-three".