7963001317421 has 4 divisors (see below), whose sum is σ = 7963367437344. Its totient is φ = 7962635197500.

The previous prime is 7963001317399. The next prime is 7963001317423. The reversal of 7963001317421 is 1247131003697.

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 7963001317421 - 2¹⁴ = 7963001301037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7963001317423) 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, 183027335 + ... + 183070836.

It is an arithmetic number, because the mean of its divisors is an integer number (1990841859336).

Almost surely, 2^{7963001317421} is an apocalyptic number.

It is an amenable number.

7963001317421 is a deficient number, since it is larger than the sum of its proper divisors (366119923).

7963001317421 is a wasteful number, since it uses less digits than its factorization.

7963001317421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366119922.

The product of its (nonzero) digits is 190512, while the sum is 44.

The spelling of 7963001317421 in words is "seven trillion, nine hundred sixty-three billion, one million, three hundred seventeen thousand, four hundred twenty-one".