28839015474 has 32 divisors (see below), whose sum is σ = 60659712000. Its totient is φ = 9122640912.

The previous prime is 28839015473. The next prime is 28839015493. The reversal of 28839015474 is 47451093882.

It is a happy number.

It is a super-2 number, since 2×28839015474² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28839015473) 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, 805224 + ... + 840275.

It is an arithmetic number, because the mean of its divisors is an integer number (1895616000).

Almost surely, 2^28839015474 is an apocalyptic number.

28839015474 is an abundant number, since it is smaller than the sum of its proper divisors (31820696526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28839015474 is a wasteful number, since it uses less digits than its factorization.

28839015474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645654.

The product of its (nonzero) digits is 1935360, while the sum is 51.

The spelling of 28839015474 in words is "twenty-eight billion, eight hundred thirty-nine million, fifteen thousand, four hundred seventy-four".