28977647306 has 8 divisors (see below), whose sum is σ = 43478904000. Its totient is φ = 14484679308.

The previous prime is 28977647291. The next prime is 28977647311. The reversal of 28977647306 is 60374677982.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2063426 + ... + 2077421.

It is an arithmetic number, because the mean of its divisors is an integer number (5434863000).

Almost surely, 2^28977647306 is an apocalyptic number.

28977647306 is a deficient number, since it is larger than the sum of its proper divisors (14501256694).

28977647306 is a wasteful number, since it uses less digits than its factorization.

28977647306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4144348.

The product of its (nonzero) digits is 21337344, while the sum is 59.

The spelling of 28977647306 in words is "twenty-eight billion, nine hundred seventy-seven million, six hundred forty-seven thousand, three hundred six".