28877679047798 has 32 divisors (see below), whose sum is σ = 50036749747200. Its totient is φ = 12243430638144.

The previous prime is 28877679047797. The next prime is 28877679047813. The reversal of 28877679047798 is 89774097677882.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28877679047797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12328703 + ... + 14482826.

It is an arithmetic number, because the mean of its divisors is an integer number (1563648429600).

Almost surely, 2^{28877679047798} is an apocalyptic number.

28877679047798 is a deficient number, since it is larger than the sum of its proper divisors (21159070699402).

28877679047798 is a wasteful number, since it uses less digits than its factorization.

28877679047798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26812364.

The product of its (nonzero) digits is 33456955392, while the sum is 89.

The spelling of 28877679047798 in words is "twenty-eight trillion, eight hundred seventy-seven billion, six hundred seventy-nine million, forty-seven thousand, seven hundred ninety-eight".