28076838078 has 16 divisors (see below), whose sum is σ = 56156829696. Its totient is φ = 9358420440.

The previous prime is 28076838077. The next prime is 28076838079. The reversal of 28076838078 is 87083867082.

It is an interprime number because it is at equal distance from previous prime (28076838077) and next prime (28076838079).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28076838071) 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, 6526 + ... + 237057.

It is an arithmetic number, because the mean of its divisors is an integer number (3509801856).

Almost surely, 2^28076838078 is an apocalyptic number.

28076838078 is an abundant number, since it is smaller than the sum of its proper divisors (28079991618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28076838078 is a wasteful number, since it uses less digits than its factorization.

28076838078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262799.

The product of its (nonzero) digits is 7225344, while the sum is 57.

The spelling of 28076838078 in words is "twenty-eight billion, seventy-six million, eight hundred thirty-eight thousand, seventy-eight".