28894157389034 has 32 divisors (see below), whose sum is σ = 53725721648256. Its totient is φ = 11370523092480.

The previous prime is 28894157388977. The next prime is 28894157389037. The reversal of 28894157389034 is 43098375149882.

It is not an unprimeable number, because it can be changed into a prime (28894157389037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1480527104 + ... + 1480546619.

It is an arithmetic number, because the mean of its divisors is an integer number (1678928801508).

Almost surely, 2^{28894157389034} is an apocalyptic number.

28894157389034 is a deficient number, since it is larger than the sum of its proper divisors (24831564259222).

28894157389034 is a wasteful number, since it uses less digits than its factorization.

28894157389034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2961073790.

The product of its (nonzero) digits is 418037760, while the sum is 71.

The spelling of 28894157389034 in words is "twenty-eight trillion, eight hundred ninety-four billion, one hundred fifty-seven million, three hundred eighty-nine thousand, thirty-four".