28007783758 has 16 divisors (see below), whose sum is σ = 44235259920. Its totient is φ = 13263111936.

The previous prime is 28007783753. The next prime is 28007783761. The reversal of 28007783758 is 85738770082.

It is a junction number, because it is equal to n+sod(n) for n = 28007783699 and 28007783708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28007783753) 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, 35560 + ... + 239332.

It is an arithmetic number, because the mean of its divisors is an integer number (2764703745).

Almost surely, 2^28007783758 is an apocalyptic number.

28007783758 is a deficient number, since it is larger than the sum of its proper divisors (16227476162).

28007783758 is a wasteful number, since it uses less digits than its factorization.

28007783758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207411.

The product of its (nonzero) digits is 5268480, while the sum is 55.

The spelling of 28007783758 in words is "twenty-eight billion, seven million, seven hundred eighty-three thousand, seven hundred fifty-eight".