28077144274 has 16 divisors (see below), whose sum is σ = 44670427128. Its totient is φ = 13189865472.

The previous prime is 28077144253. The next prime is 28077144287. The reversal of 28077144274 is 47244177082.

It can be written as a sum of positive squares in 4 ways, for example, as 27279477225 + 797667049 = 165165^2 + 28243^2 .

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, 695979 + ... + 735214.

Almost surely, 2^28077144274 is an apocalyptic number.

28077144274 is a deficient number, since it is larger than the sum of its proper divisors (16593282854).

28077144274 is a wasteful number, since it uses less digits than its factorization.

28077144274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431789.

The product of its (nonzero) digits is 702464, while the sum is 46.

The spelling of 28077144274 in words is "twenty-eight billion, seventy-seven million, one hundred forty-four thousand, two hundred seventy-four".