28737140506 has 16 divisors (see below), whose sum is σ = 44161951680. Its totient is φ = 14016567520.

The previous prime is 28737140479. The next prime is 28737140587. The reversal of 28737140506 is 60504173782.

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, 1167555 + ... + 1191913.

It is an arithmetic number, because the mean of its divisors is an integer number (2760121980).

Almost surely, 2^28737140506 is an apocalyptic number.

28737140506 is a deficient number, since it is larger than the sum of its proper divisors (15424811174).

28737140506 is a wasteful number, since it uses less digits than its factorization.

28737140506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38789.

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 28737140506 in words is "twenty-eight billion, seven hundred thirty-seven million, one hundred forty thousand, five hundred six".