28706260068615 has 32 divisors (see below), whose sum is σ = 48375943418880. Its totient is φ = 14495648201856.

The previous prime is 28706260068611. The next prime is 28706260068617. The reversal of 28706260068615 is 51686006260782.

It is not a de Polignac number, because 28706260068615 - 2² = 28706260068611 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28706260068611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29264607 + ... + 30229616.

It is an arithmetic number, because the mean of its divisors is an integer number (1511748231840).

Almost surely, 2^{28706260068615} is an apocalyptic number.

28706260068615 is a deficient number, since it is larger than the sum of its proper divisors (19669683350265).

28706260068615 is a wasteful number, since it uses less digits than its factorization.

28706260068615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59495943.

The product of its (nonzero) digits is 11612160, while the sum is 57.

The spelling of 28706260068615 in words is "twenty-eight trillion, seven hundred six billion, two hundred sixty million, sixty-eight thousand, six hundred fifteen".