28713371078 has 16 divisors (see below), whose sum is σ = 49235104800. Its totient is φ = 12302684736.

The previous prime is 28713371053. The next prime is 28713371081. The reversal of 28713371078 is 87017331782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194753 + ... + 308796.

It is an arithmetic number, because the mean of its divisors is an integer number (3077194050).

Almost surely, 2^28713371078 is an apocalyptic number.

28713371078 is a deficient number, since it is larger than the sum of its proper divisors (20521733722).

28713371078 is a wasteful number, since it uses less digits than its factorization.

28713371078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507631.

The product of its (nonzero) digits is 395136, while the sum is 47.

The spelling of 28713371078 in words is "twenty-eight billion, seven hundred thirteen million, three hundred seventy-one thousand, seventy-eight".