28846220702497 has 4 divisors (see below), whose sum is σ = 31468604402736. Its totient is φ = 26223837002260.

The previous prime is 28846220702491. The next prime is 28846220702681. The reversal of 28846220702497 is 79420702264882.

It is a happy number.

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 28846220702497 - 2²⁷ = 28846086484769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28846220702491) 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, 1311191850103 + ... + 1311191850124.

It is an arithmetic number, because the mean of its divisors is an integer number (7867151100684).

Almost surely, 2^{28846220702497} is an apocalyptic number.

It is an amenable number.

28846220702497 is a deficient number, since it is larger than the sum of its proper divisors (2622383700239).

28846220702497 is a wasteful number, since it uses less digits than its factorization.

28846220702497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2622383700238.

The product of its (nonzero) digits is 43352064, while the sum is 61.

The spelling of 28846220702497 in words is "twenty-eight trillion, eight hundred forty-six billion, two hundred twenty million, seven hundred two thousand, four hundred ninety-seven".