28722963049 has 8 divisors (see below), whose sum is σ = 31626985248. Its totient is φ = 25867748160.

The previous prime is 28722962977. The next prime is 28722963053. The reversal of 28722963049 is 94036922782.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28722963049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28722962987 and 28722963005.

It is not an unprimeable number, because it can be changed into a prime (28722963349) 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, 12200592 + ... + 12202945.

It is an arithmetic number, because the mean of its divisors is an integer number (3953373156).

Almost surely, 2^28722963049 is an apocalyptic number.

It is an amenable number.

28722963049 is a deficient number, since it is larger than the sum of its proper divisors (2904022199).

28722963049 is a wasteful number, since it uses less digits than its factorization.

28722963049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24403655.

The product of its (nonzero) digits is 2612736, while the sum is 52.

The spelling of 28722963049 in words is "twenty-eight billion, seven hundred twenty-two million, nine hundred sixty-three thousand, forty-nine".