28387062836 has 24 divisors (see below), whose sum is σ = 55453800864. Its totient is φ = 12603134880.

The previous prime is 28387062787. The next prime is 28387062853. The reversal of 28387062836 is 63826078382.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7499975 + ... + 7503758.

It is an arithmetic number, because the mean of its divisors is an integer number (2310575036).

Almost surely, 2^28387062836 is an apocalyptic number.

It is an amenable number.

28387062836 is a deficient number, since it is larger than the sum of its proper divisors (27066738028).

28387062836 is a wasteful number, since it uses less digits than its factorization.

28387062836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15003791 (or 15003789 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 53.

The spelling of 28387062836 in words is "twenty-eight billion, three hundred eighty-seven million, sixty-two thousand, eight hundred thirty-six".