28494452810 has 32 divisors (see below), whose sum is σ = 52323991632. Its totient is φ = 11169999360.

The previous prime is 28494452803. The next prime is 28494452827. The reversal of 28494452810 is 1825449482.

It is a happy number.

It is a Cunningham number, because it is equal to 168803²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 10257840961 + 18236611849 = 101281^2 + 135043^2 .

It is a super-2 number, since 2×28494452810² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9701 + ... + 238920.

Almost surely, 2^28494452810 is an apocalyptic number.

28494452810 is a deficient number, since it is larger than the sum of its proper divisors (23829538822).

28494452810 is a wasteful number, since it uses less digits than its factorization.

28494452810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248858.

The product of its (nonzero) digits is 737280, while the sum is 47.

The spelling of 28494452810 in words is "twenty-eight billion, four hundred ninety-four million, four hundred fifty-two thousand, eight hundred ten".