28372962578 has 8 divisors (see below), whose sum is σ = 42561306300. Its totient is φ = 14185860480.

The previous prime is 28372962571. The next prime is 28372962613. The reversal of 28372962578 is 87526927382.

It can be written as a sum of positive squares in 2 ways, for example, as 25727197609 + 2645764969 = 160397^2 + 51437^2 .

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

It is not an unprimeable number, because it can be changed into a prime (28372962571) 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, 251003 + ... + 346046.

Almost surely, 2^28372962578 is an apocalyptic number.

28372962578 is a deficient number, since it is larger than the sum of its proper divisors (14188343722).

28372962578 is a wasteful number, since it uses less digits than its factorization.

28372962578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620812.

The product of its digits is 20321280, while the sum is 59.

The spelling of 28372962578 in words is "twenty-eight billion, three hundred seventy-two million, nine hundred sixty-two thousand, five hundred seventy-eight".