611789381336 has 32 divisors (see below), whose sum is σ = 1327571904000. Its totient is φ = 258876517536.

The previous prime is 611789381317. The next prime is 611789381341. The reversal of 611789381336 is 633183987116.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69139946 + ... + 69148793.

It is an arithmetic number, because the mean of its divisors is an integer number (41486622000).

Almost surely, 2^611789381336 is an apocalyptic number.

It is an amenable number.

611789381336 is an abundant number, since it is smaller than the sum of its proper divisors (715782522664).

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

611789381336 is a wasteful number, since it uses less digits than its factorization.

611789381336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138288831 (or 138288827 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 56.

The spelling of 611789381336 in words is "six hundred eleven billion, seven hundred eighty-nine million, three hundred eighty-one thousand, three hundred thirty-six".