8791477642 has 8 divisors (see below), whose sum is σ = 13189842432. Its totient is φ = 4394863500.

The previous prime is 8791477619. The next prime is 8791477649. The reversal of 8791477642 is 2467741978.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (8791477649) 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, 425034 + ... + 445237.

It is an arithmetic number, because the mean of its divisors is an integer number (1648730304).

Almost surely, 2^8791477642 is an apocalyptic number.

8791477642 is a deficient number, since it is larger than the sum of its proper divisors (4398364790).

8791477642 is a wasteful number, since it uses less digits than its factorization.

8791477642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875324.

The product of its digits is 4741632, while the sum is 55.

The square root of 8791477642 is about 93762.8798725807. The cubic root of 8791477642 is about 2063.8935413525.

The spelling of 8791477642 in words is "eight billion, seven hundred ninety-one million, four hundred seventy-seven thousand, six hundred forty-two".