611578875117 has 12 divisors (see below), whose sum is σ = 948571316736. Its totient is φ = 349473642840.

The previous prime is 611578875109. The next prime is 611578875137. The reversal of 611578875117 is 711578875116.

It is a happy number.

611578875117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 611578875117 - 2³ = 611578875109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611578875137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2080200109 + ... + 2080200402.

It is an arithmetic number, because the mean of its divisors is an integer number (79047609728).

Almost surely, 2^611578875117 is an apocalyptic number.

It is an amenable number.

611578875117 is a deficient number, since it is larger than the sum of its proper divisors (336992441619).

611578875117 is a wasteful number, since it uses less digits than its factorization.

611578875117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4160400528 (or 4160400521 counting only the distinct ones).

The product of its digits is 3292800, while the sum is 57.

Subtracting 611578875117 from its reverse (711578875116), we obtain a palindrome (99999999999).

The spelling of 611578875117 in words is "six hundred eleven billion, five hundred seventy-eight million, eight hundred seventy-five thousand, one hundred seventeen".