8742662479 has 4 divisors (see below), whose sum is σ = 8745967984. Its totient is φ = 8739356976.

The previous prime is 8742662447. The next prime is 8742662483. The reversal of 8742662479 is 9742662478.

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 8742662479 - 2⁵ = 8742662447 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 (8742662419) 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, 1648782 + ... + 1654075.

It is an arithmetic number, because the mean of its divisors is an integer number (2186491996).

Almost surely, 2^8742662479 is an apocalyptic number.

8742662479 is a deficient number, since it is larger than the sum of its proper divisors (3305505).

8742662479 is a wasteful number, since it uses less digits than its factorization.

8742662479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3305504.

The product of its digits is 8128512, while the sum is 55.

The square root of 8742662479 is about 93502.2057440358. The cubic root of 8742662479 is about 2060.0664884909.

Subtracting 8742662479 from its reverse (9742662478), we obtain a palindrome (999999999).

The spelling of 8742662479 in words is "eight billion, seven hundred forty-two million, six hundred sixty-two thousand, four hundred seventy-nine".