611172278412 has 48 divisors (see below), whose sum is σ = 1430556083712. Its totient is φ = 203083343680.

The previous prime is 611172278393. The next prime is 611172278447. The reversal of 611172278412 is 214872271116.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 17692237 + ... + 17726747.

It is an arithmetic number, because the mean of its divisors is an integer number (29803251744).

Almost surely, 2^611172278412 is an apocalyptic number.

It is an amenable number.

611172278412 is an abundant number, since it is smaller than the sum of its proper divisors (819383805300).

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

611172278412 is a wasteful number, since it uses less digits than its factorization.

611172278412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39118 (or 39116 counting only the distinct ones).

The product of its digits is 75264, while the sum is 42.

The spelling of 611172278412 in words is "six hundred eleven billion, one hundred seventy-two million, two hundred seventy-eight thousand, four hundred twelve".