28479151242 has 48 divisors (see below), whose sum is σ = 64452435840. Its totient is φ = 9076699296.

The previous prime is 28479151219. The next prime is 28479151277. The reversal of 28479151242 is 24215197482.

28479151242 is a `hidden beast` number, since 2 + 8 + 4 + 7 + 91 + 512 + 42 = 666.

It is a super-2 number, since 2×28479151242² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 211078 + ... + 318609.

It is an arithmetic number, because the mean of its divisors is an integer number (1342759080).

Almost surely, 2^28479151242 is an apocalyptic number.

28479151242 is an abundant number, since it is smaller than the sum of its proper divisors (35973284598).

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

28479151242 is a wasteful number, since it uses less digits than its factorization.

28479151242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529827 (or 529824 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The spelling of 28479151242 in words is "twenty-eight billion, four hundred seventy-nine million, one hundred fifty-one thousand, two hundred forty-two".