611142378027830 has 32 divisors (see below), whose sum is σ = 1200104014215168. Its totient is φ = 222225699906400.

The previous prime is 611142378027749. The next prime is 611142378027847. The reversal of 611142378027830 is 38720873241116.

It is a super-2 number, since 2×611142378027830² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95539286 + ... + 101735145.

It is an arithmetic number, because the mean of its divisors is an integer number (37503250444224).

Almost surely, 2^{611142378027830} is an apocalyptic number.

611142378027830 is a deficient number, since it is larger than the sum of its proper divisors (588961636187338).

611142378027830 is a wasteful number, since it uses less digits than its factorization.

611142378027830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197302612.

The product of its (nonzero) digits is 2709504, while the sum is 53.

The spelling of 611142378027830 in words is "six hundred eleven trillion, one hundred forty-two billion, three hundred seventy-eight million, twenty-seven thousand, eight hundred thirty".