618354377 has 4 divisors (see below), whose sum is σ = 628491396. Its totient is φ = 608217360.

The previous prime is 618354343. The next prime is 618354389. The reversal of 618354377 is 773453816.

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

It can be written as a sum of positive squares in 2 ways, for example, as 95043001 + 523311376 = 9749^2 + 22876^2 .

It is a cyclic number.

It is not a de Polignac number, because 618354377 - 2¹² = 618350281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (618354337) 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, 5068418 + ... + 5068539.

It is an arithmetic number, because the mean of its divisors is an integer number (157122849).

Almost surely, 2^618354377 is an apocalyptic number.

It is an amenable number.

618354377 is a deficient number, since it is larger than the sum of its proper divisors (10137019).

618354377 is a wasteful number, since it uses less digits than its factorization.

618354377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10137018.

The product of its digits is 423360, while the sum is 44.

The square root of 618354377 is about 24866.7323345871. The cubic root of 618354377 is about 851.9468073685.

The spelling of 618354377 in words is "six hundred eighteen million, three hundred fifty-four thousand, three hundred seventy-seven".