28081642362 has 16 divisors (see below), whose sum is σ = 56165603520. Its totient is φ = 9360160992.

The previous prime is 28081642357. The next prime is 28081642399. The reversal of 28081642362 is 26324618082.

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, 87939 + ... + 252777.

It is an arithmetic number, because the mean of its divisors is an integer number (3510350220).

Almost surely, 2^28081642362 is an apocalyptic number.

28081642362 is an abundant number, since it is smaller than the sum of its proper divisors (28083961158).

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

28081642362 is a wasteful number, since it uses less digits than its factorization.

28081642362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193237.

The product of its (nonzero) digits is 221184, while the sum is 42.

The spelling of 28081642362 in words is "twenty-eight billion, eighty-one million, six hundred forty-two thousand, three hundred sixty-two".