918057509122 has 16 divisors (see below), whose sum is σ = 1483374453120. Its totient is φ = 423616428432.

The previous prime is 918057509119. The next prime is 918057509137. The reversal of 918057509122 is 221905750819.

It is a super-2 number, since 2×918057509122² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4157898 + ... + 4373125.

It is an arithmetic number, because the mean of its divisors is an integer number (92710903320).

Almost surely, 2^918057509122 is an apocalyptic number.

918057509122 is a deficient number, since it is larger than the sum of its proper divisors (565316943998).

918057509122 is a wasteful number, since it uses less digits than its factorization.

918057509122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8535177.

The product of its (nonzero) digits is 453600, while the sum is 49.

The spelling of 918057509122 in words is "nine hundred eighteen billion, fifty-seven million, five hundred nine thousand, one hundred twenty-two".