4618638897 has 8 divisors (see below), whose sum is σ = 6520431456. Its totient is φ = 2897969472.

The previous prime is 4618638877. The next prime is 4618638907. The reversal of 4618638897 is 7988368164.

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

It is not a de Polignac number, because 4618638897 - 2⁸ = 4618638641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4618638897.

It is not an unprimeable number, because it can be changed into a prime (4618638877) 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, 45280723 + ... + 45280824.

It is an arithmetic number, because the mean of its divisors is an integer number (815053932).

Almost surely, 2^4618638897 is an apocalyptic number.

It is an amenable number.

4618638897 is a deficient number, since it is larger than the sum of its proper divisors (1901792559).

4618638897 is a wasteful number, since it uses less digits than its factorization.

4618638897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90561567.

The product of its digits is 13934592, while the sum is 60.

The square root of 4618638897 is about 67960.5686924411. The cubic root of 4618638897 is about 1665.3467336932.

The spelling of 4618638897 in words is "four billion, six hundred eighteen million, six hundred thirty-eight thousand, eight hundred ninety-seven".