914932945021 has 16 divisors (see below), whose sum is σ = 944777596464.
Its totient is φ = 885366388224.
The previous prime is 914932945019. The next prime is 914932945057. The reversal of 914932945021 is 120549239419.
It is a happy number.
It can be written as a sum of positive squares in 8 ways, for example, as 196949564100 + 717983380921 = 443790^2 + 847339^2
It is a cyclic number.
It is not a de Polignac number, because 914932945021 - 21 = 914932945019 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (914932945001) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7500111 + ... + 7621123.
It is an arithmetic number, because the mean of its divisors is an integer number (59048599779).
Almost surely, 2914932945021 is an apocalyptic number.
It is an amenable number.
914932945021 is a deficient number, since it is larger than the sum of its proper divisors (29844651443).
914932945021 is a wasteful number, since it uses less digits than its factorization.
914932945021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 122160.
The product of its (nonzero) digits is 699840, while the sum is 49.
The spelling of 914932945021 in words is "nine hundred fourteen billion, nine hundred thirty-two million, nine hundred forty-five thousand, twenty-one".