225987612937761 has 4 divisors (see below), whose sum is σ = 301316817250352. Its totient is φ = 150658408625172.

The previous prime is 225987612937753. The next prime is 225987612937799. The reversal of 225987612937761 is 167739216789522.

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 not a de Polignac number, because 225987612937761 - 2³ = 225987612937753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225987612937861) 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, 37664602156291 + ... + 37664602156296.

It is an arithmetic number, because the mean of its divisors is an integer number (75329204312588).

Almost surely, 2^{225987612937761} is an apocalyptic number.

It is an amenable number.

225987612937761 is a deficient number, since it is larger than the sum of its proper divisors (75329204312591).

225987612937761 is an equidigital number, since it uses as much as digits as its factorization.

225987612937761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75329204312590.

The product of its digits is 960180480, while the sum is 75.

The spelling of 225987612937761 in words is "two hundred twenty-five trillion, nine hundred eighty-seven billion, six hundred twelve million, nine hundred thirty-seven thousand, seven hundred sixty-one".