918691409146 has 16 divisors (see below), whose sum is σ = 1590492625920. Its totient is φ = 389826622800.

The previous prime is 918691409071. The next prime is 918691409177. The reversal of 918691409146 is 641904196819.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324854106 + ... + 324856933.

It is an arithmetic number, because the mean of its divisors is an integer number (99405789120).

Almost surely, 2^918691409146 is an apocalyptic number.

918691409146 is a deficient number, since it is larger than the sum of its proper divisors (671801216774).

918691409146 is a wasteful number, since it uses less digits than its factorization.

918691409146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649711149.

The product of its (nonzero) digits is 3359232, while the sum is 58.

The spelling of 918691409146 in words is "nine hundred eighteen billion, six hundred ninety-one million, four hundred nine thousand, one hundred forty-six".