611205020454 has 24 divisors (see below), whose sum is σ = 1421987191128. Its totient is φ = 174630005760.

The previous prime is 611205020359. The next prime is 611205020467. The reversal of 611205020454 is 454020502116.

611205020454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×611205020454³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1039464027 + ... + 1039464614.

It is an arithmetic number, because the mean of its divisors is an integer number (59249466297).

Almost surely, 2^611205020454 is an apocalyptic number.

611205020454 is an abundant number, since it is smaller than the sum of its proper divisors (810782170674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

611205020454 is a wasteful number, since it uses less digits than its factorization.

611205020454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2078928660 (or 2078928653 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The spelling of 611205020454 in words is "six hundred eleven billion, two hundred five million, twenty thousand, four hundred fifty-four".