28034723902 has 8 divisors (see below), whose sum is σ = 44525738016. Its totient is φ = 13192811232.

The previous prime is 28034723891. The next prime is 28034723903. The reversal of 28034723902 is 20932743082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×28034723902² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28034723903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412275318 + ... + 412275385.

It is an arithmetic number, because the mean of its divisors is an integer number (5565717252).

Almost surely, 2^28034723902 is an apocalyptic number.

28034723902 is a deficient number, since it is larger than the sum of its proper divisors (16491014114).

28034723902 is a wasteful number, since it uses less digits than its factorization.

28034723902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824550722.

The product of its (nonzero) digits is 145152, while the sum is 40.

The spelling of 28034723902 in words is "twenty-eight billion, thirty-four million, seven hundred twenty-three thousand, nine hundred two".