28934142152 has 8 divisors (see below), whose sum is σ = 54251516550. Its totient is φ = 14467071072.

The previous prime is 28934142119. The next prime is 28934142173. The reversal of 28934142152 is 25124143982.

It can be written as a sum of positive squares in only one way, i.e., 26138482276 + 2795659876 = 161674^2 + 52874^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×28934142152² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1808383877 + ... + 1808383892.

Almost surely, 2^28934142152 is an apocalyptic number.

It is an amenable number.

28934142152 is a deficient number, since it is larger than the sum of its proper divisors (25317374398).

28934142152 is a wasteful number, since it uses less digits than its factorization.

28934142152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3616767775 (or 3616767771 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The spelling of 28934142152 in words is "twenty-eight billion, nine hundred thirty-four million, one hundred forty-two thousand, one hundred fifty-two".