611620026453 has 6 divisors (see below), whose sum is σ = 883451149334. Its totient is φ = 407746684296.

The previous prime is 611620026389. The next prime is 611620026467. The reversal of 611620026453 is 354620026116.

611620026453 is a `hidden beast` number, since 6 + 1 + 1 + 6 + 2 + 0 + 0 + 2 + 645 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 335724059889 + 275895966564 = 579417^2 + 525258^2 .

It is not a de Polignac number, because 611620026453 - 2⁶ = 611620026389 is a prime.

It is a super-2 number, since 2×611620026453² (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 (611620026253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33978890350 + ... + 33978890367.

Almost surely, 2^611620026453 is an apocalyptic number.

It is an amenable number.

611620026453 is a deficient number, since it is larger than the sum of its proper divisors (271831122881).

611620026453 is a wasteful number, since it uses less digits than its factorization.

611620026453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67957780723 (or 67957780720 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 611620026453 in words is "six hundred eleven billion, six hundred twenty million, twenty-six thousand, four hundred fifty-three".