7488666663 has 4 divisors (see below), whose sum is σ = 9984888888. Its totient is φ = 4992444440.

The previous prime is 7488666659. The next prime is 7488666701. The reversal of 7488666663 is 3666668847.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7488666663 - 2² = 7488666659 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7488666597 and 7488666606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7488666613) 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, 1248111108 + ... + 1248111113.

It is an arithmetic number, because the mean of its divisors is an integer number (2496222222).

Almost surely, 2^7488666663 is an apocalyptic number.

7488666663 is a deficient number, since it is larger than the sum of its proper divisors (2496222225).

7488666663 is a wasteful number, since it uses less digits than its factorization.

7488666663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2496222224.

The product of its digits is 41803776, while the sum is 60.

The square root of 7488666663 is about 86537.0825889110. The cubic root of 7488666663 is about 1956.4473565475.

The spelling of 7488666663 in words is "seven billion, four hundred eighty-eight million, six hundred sixty-six thousand, six hundred sixty-three".