612977819041 has 9 divisors (see below), whose sum is σ = 713062205649. Its totient is φ = 525404861604.

The previous prime is 612977818991. The next prime is 612977819059. The reversal of 612977819041 is 140918779216.

It is a happy number.

The square root of 612977819041 is 782929.

It is a perfect power (a square), and thus also a powerful number.

612977819041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 612977819041 - 2³⁵ = 578618080673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612977819081) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5424580 + ... + 5536426.

It is an arithmetic number, because the mean of its divisors is an integer number (79229133961).

Almost surely, 2^612977819041 is an apocalyptic number.

612977819041 is the 782929-th square number.

612977819041 is the 391465-th centered octagonal number.

It is an amenable number.

612977819041 is a deficient number, since it is larger than the sum of its proper divisors (100084386608).

612977819041 is an frugal number, since it uses more digits than its factorization.

612977819041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223708 (or 111854 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 55.

The spelling of 612977819041 in words is "six hundred twelve billion, nine hundred seventy-seven million, eight hundred nineteen thousand, forty-one".