28772301790 has 16 divisors (see below), whose sum is σ = 51792333120. Its totient is φ = 11508434080.

The previous prime is 28772301709. The next prime is 28772301799. The reversal of 28772301790 is 9710327782.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 28772301790.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28772301799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276651 + ... + 366169.

It is an arithmetic number, because the mean of its divisors is an integer number (3237020820).

Almost surely, 2^28772301790 is an apocalyptic number.

28772301790 is a deficient number, since it is larger than the sum of its proper divisors (23020031330).

28772301790 is a wasteful number, since it uses less digits than its factorization.

28772301790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121667.

The product of its (nonzero) digits is 296352, while the sum is 46.

The spelling of 28772301790 in words is "twenty-eight billion, seven hundred seventy-two million, three hundred one thousand, seven hundred ninety".