4947815658 has 16 divisors (see below), whose sum is σ = 9918490176. Its totient is φ = 1645462080.

The previous prime is 4947815647. The next prime is 4947815659. The reversal of 4947815658 is 8565187494.

It is a junction number, because it is equal to n+sod(n) for n = 4947815598 and 4947815607.

It is not an unprimeable number, because it can be changed into a prime (4947815659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 949638 + ... + 954833.

It is an arithmetic number, because the mean of its divisors is an integer number (619905636).

Almost surely, 2^4947815658 is an apocalyptic number.

4947815658 is an abundant number, since it is smaller than the sum of its proper divisors (4970674518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4947815658 is a wasteful number, since it uses less digits than its factorization.

4947815658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1904909.

The product of its digits is 9676800, while the sum is 57.

The square root of 4947815658 is about 70340.7112417837. The cubic root of 4947815658 is about 1704.0061984555.

The spelling of 4947815658 in words is "four billion, nine hundred forty-seven million, eight hundred fifteen thousand, six hundred fifty-eight".