28694183452 has 36 divisors (see below), whose sum is σ = 55258134568. Its totient is φ = 13027845600.

The previous prime is 28694183449. The next prime is 28694183461. The reversal of 28694183452 is 25438149682.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 28694183452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 393802 + ... + 460942.

Almost surely, 2^28694183452 is an apocalyptic number.

28694183452 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28694183452 is a deficient number, since it is larger than the sum of its proper divisors (26563951116).

28694183452 is a wasteful number, since it uses less digits than its factorization.

28694183452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68050 (or 68037 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 52.

The spelling of 28694183452 in words is "twenty-eight billion, six hundred ninety-four million, one hundred eighty-three thousand, four hundred fifty-two".