611407122437542 has 4 divisors (see below), whose sum is σ = 917110683656316. Its totient is φ = 305703561218770.

The previous prime is 611407122437537. The next prime is 611407122437561. The reversal of 611407122437542 is 245734221704116.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152851780609384 + ... + 152851780609387.

It is an arithmetic number, because the mean of its divisors is an integer number (229277670914079).

Almost surely, 2^{611407122437542} is an apocalyptic number.

611407122437542 is a deficient number, since it is larger than the sum of its proper divisors (305703561218774).

611407122437542 is a wasteful number, since it uses less digits than its factorization.

611407122437542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305703561218773.

The product of its (nonzero) digits is 2257920, while the sum is 49.

The spelling of 611407122437542 in words is "six hundred eleven trillion, four hundred seven billion, one hundred twenty-two million, four hundred thirty-seven thousand, five hundred forty-two".