912213450961 has 4 divisors (see below), whose sum is σ = 912218142832. Its totient is φ = 912208759092.

The previous prime is 912213450877. The next prime is 912213450979. The reversal of 912213450961 is 169054312219.

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 912213450961 - 2⁷ = 912213450833 is a prime.

It is a super-2 number, since 2×912213450961² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (912213450361) 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, 2041095 + ... + 2447548.

It is an arithmetic number, because the mean of its divisors is an integer number (228054535708).

Almost surely, 2^912213450961 is an apocalyptic number.

It is an amenable number.

912213450961 is a deficient number, since it is larger than the sum of its proper divisors (4691871).

912213450961 is a wasteful number, since it uses less digits than its factorization.

912213450961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4691870.

The product of its (nonzero) digits is 116640, while the sum is 43.

The spelling of 912213450961 in words is "nine hundred twelve billion, two hundred thirteen million, four hundred fifty thousand, nine hundred sixty-one".