611707042874944 has 21 divisors (see below), whose sum is σ = 1213856555836897. Its totient is φ = 305853422506624.

The previous prime is 611707042874887. The next prime is 611707042874969. The reversal of 611707042874944 is 449478240707116.

The square root of 611707042874944 is 24732712.

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

It can be written as a sum of positive squares in only one way, i.e., 198954184532544 + 412752858342400 = 14105112^2 + 20316320^2 .

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 196315902 + ... + 199407490.

Almost surely, 2^{611707042874944} is an apocalyptic number.

611707042874944 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

611707042874944 is the 24732712-nd square number.

It is an amenable number.

611707042874944 is a deficient number, since it is larger than the sum of its proper divisors (602149512961953).

611707042874944 is an frugal number, since it uses more digits than its factorization.

611707042874944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6183190 (or 3091591 counting only the distinct ones).

The product of its (nonzero) digits is 75866112, while the sum is 64.

611707042874944 divided by its sum of digits (64) gives a square (9557922544921 = 3091589²).

The spelling of 611707042874944 in words is "six hundred eleven trillion, seven hundred seven billion, forty-two million, eight hundred seventy-four thousand, nine hundred forty-four".