612826561772 has 12 divisors (see below), whose sum is σ = 1072463309736. Its totient is φ = 306408473280.

The previous prime is 612826561759. The next prime is 612826561847. The reversal of 612826561772 is 277165628216.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 907058 + ... + 1431225.

It is an arithmetic number, because the mean of its divisors is an integer number (89371942478).

Almost surely, 2^612826561772 is an apocalyptic number.

It is an amenable number.

612826561772 is a deficient number, since it is larger than the sum of its proper divisors (459636747964).

612826561772 is a wasteful number, since it uses less digits than its factorization.

612826561772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2403808 (or 2403806 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 53.

The spelling of 612826561772 in words is "six hundred twelve billion, eight hundred twenty-six million, five hundred sixty-one thousand, seven hundred seventy-two".