28925435156234 has 4 divisors (see below), whose sum is σ = 43388152734354. Its totient is φ = 14462717578116.

The previous prime is 28925435156221. The next prime is 28925435156243. The reversal of 28925435156234 is 43265153452982.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 27600806800609 + 1324628355625 = 5253647^2 + 1150925^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7231358789057 + ... + 7231358789060.

Almost surely, 2^{28925435156234} is an apocalyptic number.

28925435156234 is a deficient number, since it is larger than the sum of its proper divisors (14462717578120).

28925435156234 is a wasteful number, since it uses less digits than its factorization.

28925435156234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14462717578119.

The product of its digits is 62208000, while the sum is 59.

The spelling of 28925435156234 in words is "twenty-eight trillion, nine hundred twenty-five billion, four hundred thirty-five million, one hundred fifty-six thousand, two hundred thirty-four".