28248467013478 has 32 divisors (see below), whose sum is σ = 45265966905600. Its totient is φ = 13182813670176.

The previous prime is 28248467013433. The next prime is 28248467013521. The reversal of 28248467013478 is 87431076484282.

It is a happy number.

It is a super-2 number, since 2×28248467013478² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11341801 + ... + 13606372.

It is an arithmetic number, because the mean of its divisors is an integer number (1414561465800).

Almost surely, 2^{28248467013478} is an apocalyptic number.

28248467013478 is a deficient number, since it is larger than the sum of its proper divisors (17017499892122).

28248467013478 is a wasteful number, since it uses less digits than its factorization.

28248467013478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24948636.

The product of its (nonzero) digits is 115605504, while the sum is 64.

The spelling of 28248467013478 in words is "twenty-eight trillion, two hundred forty-eight billion, four hundred sixty-seven million, thirteen thousand, four hundred seventy-eight".