28723594949 has 32 divisors (see below), whose sum is σ = 35057104896. Its totient is φ = 23011983360.

The previous prime is 28723594937. The next prime is 28723594957. The reversal of 28723594949 is 94949532782.

It is a cyclic number.

It is not a de Polignac number, because 28723594949 - 2⁸ = 28723594693 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28723594891 and 28723594900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28423594949) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1086917 + ... + 1113029.

It is an arithmetic number, because the mean of its divisors is an integer number (1095534528).

Almost surely, 2^28723594949 is an apocalyptic number.

It is an amenable number.

28723594949 is a deficient number, since it is larger than the sum of its proper divisors (6333509947).

28723594949 is a wasteful number, since it uses less digits than its factorization.

28723594949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26325.

The product of its digits is 39191040, while the sum is 62.

The spelling of 28723594949 in words is "twenty-eight billion, seven hundred twenty-three million, five hundred ninety-four thousand, nine hundred forty-nine".