7621647463 has 2 divisors, whose sum is σ = 7621647464. Its totient is φ = 7621647462.

The previous prime is 7621647461. The next prime is 7621647469. The reversal of 7621647463 is 3647461267.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7621647463 - 2¹ = 7621647461 is a prime.

Together with 7621647461, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7621647461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3810823731 + 3810823732.

It is an arithmetic number, because the mean of its divisors is an integer number (3810823732).

Almost surely, 2^7621647463 is an apocalyptic number.

7621647463 is a deficient number, since it is larger than the sum of its proper divisors (1).

7621647463 is an equidigital number, since it uses as much as digits as its factorization.

7621647463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 46.

The square root of 7621647463 is about 87302.0473013090. The cubic root of 7621647463 is about 1967.9600847291.

The spelling of 7621647463 in words is "seven billion, six hundred twenty-one million, six hundred forty-seven thousand, four hundred sixty-three".