28625994861253 has 4 divisors (see below), whose sum is σ = 30132626169760. Its totient is φ = 27119363552748.

The previous prime is 28625994861239. The next prime is 28625994861287. The reversal of 28625994861253 is 35216849952682.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28625994861253 - 2⁹ = 28625994860741 is a prime.

It is a super-3 number, since 3×28625994861253³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28625994861223) 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, 753315654225 + ... + 753315654262.

It is an arithmetic number, because the mean of its divisors is an integer number (7533156542440).

Almost surely, 2^{28625994861253} is an apocalyptic number.

It is an amenable number.

28625994861253 is a deficient number, since it is larger than the sum of its proper divisors (1506631308507).

28625994861253 is a wasteful number, since it uses less digits than its factorization.

28625994861253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506631308506.

The product of its digits is 447897600, while the sum is 70.

The spelling of 28625994861253 in words is "twenty-eight trillion, six hundred twenty-five billion, nine hundred ninety-four million, eight hundred sixty-one thousand, two hundred fifty-three".