28918329674 has 32 divisors (see below), whose sum is σ = 48459479040. Its totient is φ = 12856521600.

The previous prime is 28918329673. The next prime is 28918329677. The reversal of 28918329674 is 47692381982.

It is a happy number.

It is a super-2 number, since 2×28918329674² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28918329673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87482 + ... + 255909.

It is an arithmetic number, because the mean of its divisors is an integer number (1514358720).

Almost surely, 2^28918329674 is an apocalyptic number.

28918329674 is a deficient number, since it is larger than the sum of its proper divisors (19541149366).

28918329674 is a wasteful number, since it uses less digits than its factorization.

28918329674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343526.

The product of its digits is 10450944, while the sum is 59.

The spelling of 28918329674 in words is "twenty-eight billion, nine hundred eighteen million, three hundred twenty-nine thousand, six hundred seventy-four".