611778434 has 8 divisors (see below), whose sum is σ = 933221520. Its totient is φ = 300704596.

The previous prime is 611778421. The next prime is 611778437. The reversal of 611778434 is 434877116.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 611778391 and 611778400.

It is not an unprimeable number, because it can be changed into a prime (611778437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2592164 + ... + 2592399.

It is an arithmetic number, because the mean of its divisors is an integer number (116652690).

Almost surely, 2^611778434 is an apocalyptic number.

611778434 is a deficient number, since it is larger than the sum of its proper divisors (321443086).

611778434 is a wasteful number, since it uses less digits than its factorization.

611778434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5184624.

The product of its digits is 112896, while the sum is 41.

The square root of 611778434 is about 24734.1552109628. The cubic root of 611778434 is about 848.9160041078.

The spelling of 611778434 in words is "six hundred eleven million, seven hundred seventy-eight thousand, four hundred thirty-four".