618945069 has 16 divisors (see below), whose sum is σ = 842063040. Its totient is φ = 404313600.

The previous prime is 618945049. The next prime is 618945073. The reversal of 618945069 is 960549816.

It is not a de Polignac number, because 618945069 - 2⁵ = 618945037 is a prime.

It is a super-2 number, since 2×618945069² = 766185996878829522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618945049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18862 + ... + 39920.

It is an arithmetic number, because the mean of its divisors is an integer number (52628940).

Almost surely, 2^618945069 is an apocalyptic number.

It is an amenable number.

618945069 is a deficient number, since it is larger than the sum of its proper divisors (223117971).

618945069 is a wasteful number, since it uses less digits than its factorization.

618945069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21260.

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 618945069 is about 24878.6066531066. The cubic root of 618945069 is about 852.2179992208.

The spelling of 618945069 in words is "six hundred eighteen million, nine hundred forty-five thousand, sixty-nine".