611368045670638 has 8 divisors (see below), whose sum is σ = 917689352783040. Its totient is φ = 305471594742960.

The previous prime is 611368045670561. The next prime is 611368045670639. The reversal of 611368045670638 is 836076540863116.

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

It is a super-2 number, since 2×611368045670638² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 611368045670638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611368045670639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106214042583 + ... + 106214048338.

It is an arithmetic number, because the mean of its divisors is an integer number (114711169097880).

Almost surely, 2^{611368045670638} is an apocalyptic number.

611368045670638 is a deficient number, since it is larger than the sum of its proper divisors (306321307112402).

611368045670638 is a wasteful number, since it uses less digits than its factorization.

611368045670638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212428092362.

The product of its (nonzero) digits is 104509440, while the sum is 64.

The spelling of 611368045670638 in words is "six hundred eleven trillion, three hundred sixty-eight billion, forty-five million, six hundred seventy thousand, six hundred thirty-eight".