28057762270 has 32 divisors (see below), whose sum is σ = 53228080800. Its totient is φ = 10619214336.

The previous prime is 28057762259. The next prime is 28057762283. The reversal of 28057762270 is 7226775082.

It is a self number, because there is not a number n which added to its sum of digits gives 28057762270.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62442 + ... + 244978.

It is an arithmetic number, because the mean of its divisors is an integer number (1663377525).

Almost surely, 2^28057762270 is an apocalyptic number.

28057762270 is a deficient number, since it is larger than the sum of its proper divisors (25170318530).

28057762270 is a wasteful number, since it uses less digits than its factorization.

28057762270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183372.

The product of its (nonzero) digits is 658560, while the sum is 46.

The spelling of 28057762270 in words is "twenty-eight billion, fifty-seven million, seven hundred sixty-two thousand, two hundred seventy".