28499683480 has 32 divisors (see below), whose sum is σ = 64236641040. Its totient is φ = 11379899520.

The previous prime is 28499683469. The next prime is 28499683483. The reversal of 28499683480 is 8438699482.

It is a Smith number, since the sum of its digits (61) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28499683483) 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, 601059 + ... + 646738.

Almost surely, 2^28499683480 is an apocalyptic number.

28499683480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28499683480 is an abundant number, since it is smaller than the sum of its proper divisors (35736957560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28499683480 is a wasteful number, since it uses less digits than its factorization.

28499683480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248379 (or 1248375 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 61.

The spelling of 28499683480 in words is "twenty-eight billion, four hundred ninety-nine million, six hundred eighty-three thousand, four hundred eighty".