28373600641 has 4 divisors (see below), whose sum is σ = 28374616000. Its totient is φ = 28372585284.

The previous prime is 28373600623. The next prime is 28373600663. The reversal of 28373600641 is 14600637382.

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 28373600641 - 2¹⁷ = 28373469569 is a prime.

It is a super-2 number, since 2×28373600641² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28373600594 and 28373600603.

It is not an unprimeable number, because it can be changed into a prime (28373600621) 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, 464541 + ... + 522058.

It is an arithmetic number, because the mean of its divisors is an integer number (7093654000).

Almost surely, 2^28373600641 is an apocalyptic number.

It is an amenable number.

28373600641 is a deficient number, since it is larger than the sum of its proper divisors (1015359).

28373600641 is an equidigital number, since it uses as much as digits as its factorization.

28373600641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015358.

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

The spelling of 28373600641 in words is "twenty-eight billion, three hundred seventy-three million, six hundred thousand, six hundred forty-one".