28163742051630 has 64 divisors (see below), whose sum is σ = 69036385536000. Its totient is φ = 7349977257984.

The previous prime is 28163742051629. The next prime is 28163742051661. The reversal of 28163742051630 is 3615024736182.

It is a self number, because there is not a number n which added to its sum of digits gives 28163742051630.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17927287 + ... + 19434893.

It is an arithmetic number, because the mean of its divisors is an integer number (1078693524000).

Almost surely, 2^{28163742051630} is an apocalyptic number.

28163742051630 is an abundant number, since it is smaller than the sum of its proper divisors (40872643484370).

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

28163742051630 is a wasteful number, since it uses less digits than its factorization.

28163742051630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520913.

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 28163742051630 in words is "twenty-eight trillion, one hundred sixty-three billion, seven hundred forty-two million, fifty-one thousand, six hundred thirty".