611051676721 has 4 divisors (see below), whose sum is σ = 612979284852. Its totient is φ = 609124068592.

The previous prime is 611051676667. The next prime is 611051676751. The reversal of 611051676721 is 127676150116.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47989036096 + 563062640625 = 219064^2 + 750375^2 .

It is a cyclic number.

It is not a de Polignac number, because 611051676721 - 2²⁷ = 610917458993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (611051676751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 963803590 + ... + 963804223.

It is an arithmetic number, because the mean of its divisors is an integer number (153244821213).

Almost surely, 2^611051676721 is an apocalyptic number.

It is an amenable number.

611051676721 is a deficient number, since it is larger than the sum of its proper divisors (1927608131).

611051676721 is a wasteful number, since it uses less digits than its factorization.

611051676721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1927608130.

The product of its (nonzero) digits is 105840, while the sum is 43.

The spelling of 611051676721 in words is "six hundred eleven billion, fifty-one million, six hundred seventy-six thousand, seven hundred twenty-one".