28078766026 has 8 divisors (see below), whose sum is σ = 43476799104. Its totient is φ = 13586499660.

The previous prime is 28078766021. The next prime is 28078766039. The reversal of 28078766026 is 62066787082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×28078766026³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (28078766021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226441600 + ... + 226441723.

It is an arithmetic number, because the mean of its divisors is an integer number (5434599888).

Almost surely, 2^28078766026 is an apocalyptic number.

28078766026 is a deficient number, since it is larger than the sum of its proper divisors (15398033078).

28078766026 is a wasteful number, since it uses less digits than its factorization.

28078766026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452883356.

The product of its (nonzero) digits is 2709504, while the sum is 52.

The spelling of 28078766026 in words is "twenty-eight billion, seventy-eight million, seven hundred sixty-six thousand, twenty-six".