611554640034 has 64 divisors (see below), whose sum is σ = 1327207400064. Its totient is φ = 186741090816.

The previous prime is 611554640003. The next prime is 611554640063. The reversal of 611554640034 is 430046455116.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 611554639974 and 611554640001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48326452 + ... + 48339104.

It is an arithmetic number, because the mean of its divisors is an integer number (20737615626).

Almost surely, 2^611554640034 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 611554640034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (663603700032).

611554640034 is an abundant number, since it is smaller than the sum of its proper divisors (715652760030).

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

611554640034 is a wasteful number, since it uses less digits than its factorization.

611554640034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17331.

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 611554640034 in words is "six hundred eleven billion, five hundred fifty-four million, six hundred forty thousand, thirty-four".