28077131074 has 8 divisors (see below), whose sum is σ = 42116493888. Its totient is φ = 14038299780.

The previous prime is 28077131063. The next prime is 28077131077. The reversal of 28077131074 is 47013177082.

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

It is not an unprimeable number, because it can be changed into a prime (28077131077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48939 + ... + 241969.

It is an arithmetic number, because the mean of its divisors is an integer number (5264561736).

Almost surely, 2^28077131074 is an apocalyptic number.

28077131074 is a deficient number, since it is larger than the sum of its proper divisors (14039362814).

28077131074 is a wasteful number, since it uses less digits than its factorization.

28077131074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265760.

The product of its (nonzero) digits is 65856, while the sum is 40.

The spelling of 28077131074 in words is "twenty-eight billion, seventy-seven million, one hundred thirty-one thousand, seventy-four".