12198534734 has 32 divisors (see below), whose sum is σ = 18933626880. Its totient is φ = 5891732800.

The previous prime is 12198534727. The next prime is 12198534769. The reversal of 12198534734 is 43743589121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1867394 + ... + 1873914.

It is an arithmetic number, because the mean of its divisors is an integer number (591675840).

Almost surely, 2^12198534734 is an apocalyptic number.

12198534734 is a deficient number, since it is larger than the sum of its proper divisors (6735092146).

12198534734 is a wasteful number, since it uses less digits than its factorization.

12198534734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6856.

The product of its digits is 725760, while the sum is 47.

The spelling of 12198534734 in words is "twelve billion, one hundred ninety-eight million, five hundred thirty-four thousand, seven hundred thirty-four".