611354619797 has 4 divisors (see below), whose sum is σ = 611377972140. Its totient is φ = 611331267456.

The previous prime is 611354619791. The next prime is 611354619833. The reversal of 611354619797 is 797916453116.

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 342879342481 + 268475277316 = 585559^2 + 518146^2 .

It is a cyclic number.

It is not a de Polignac number, because 611354619797 - 2⁸ = 611354619541 is a prime.

It is a super-2 number, since 2×611354619797² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611354619791) 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, 11636858 + ... + 11689275.

It is an arithmetic number, because the mean of its divisors is an integer number (152844493035).

Almost surely, 2^611354619797 is an apocalyptic number.

It is an amenable number.

611354619797 is a deficient number, since it is larger than the sum of its proper divisors (23352343).

611354619797 is a wasteful number, since it uses less digits than its factorization.

611354619797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23352342.

The product of its digits is 8573040, while the sum is 59.

The spelling of 611354619797 in words is "six hundred eleven billion, three hundred fifty-four million, six hundred nineteen thousand, seven hundred ninety-seven".