28025278347 has 32 divisors (see below), whose sum is σ = 42099425280. Its totient is φ = 16429140000.

The previous prime is 28025278339. The next prime is 28025278363. The reversal of 28025278347 is 74387252082.

It is not a de Polignac number, because 28025278347 - 2³ = 28025278339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28025278296 and 28025278305.

It is not an unprimeable number, because it can be changed into a prime (28025278147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2604304 + ... + 2615042.

It is an arithmetic number, because the mean of its divisors is an integer number (1315607040).

Almost surely, 2^28025278347 is an apocalyptic number.

28025278347 is a deficient number, since it is larger than the sum of its proper divisors (14074146933).

28025278347 is a wasteful number, since it uses less digits than its factorization.

28025278347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13335.

The product of its (nonzero) digits is 1505280, while the sum is 48.

The spelling of 28025278347 in words is "twenty-eight billion, twenty-five million, two hundred seventy-eight thousand, three hundred forty-seven".