611368474464 has 288 divisors, whose sum is σ = 1994599676160. Its totient is φ = 182652019200.

The previous prime is 611368474459. The next prime is 611368474537. The reversal of 611368474464 is 464474863116.

611368474464 is a `hidden beast` number, since 6 + 1 + 1 + 36 + 84 + 74 + 464 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 611368474464.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6022722 + ... + 6123390.

It is an arithmetic number, because the mean of its divisors is an integer number (6925693320).

Almost surely, 2^611368474464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 611368474464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (997299838080).

611368474464 is an abundant number, since it is smaller than the sum of its proper divisors (1383231201696).

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

611368474464 is a wasteful number, since it uses less digits than its factorization.

611368474464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100776 (or 100756 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 54.

The spelling of 611368474464 in words is "six hundred eleven billion, three hundred sixty-eight million, four hundred seventy-four thousand, four hundred sixty-four".