618877579149 has 48 divisors (see below), whose sum is σ = 915689069568. Its totient is φ = 402599073696.

The previous prime is 618877579127. The next prime is 618877579157. The reversal of 618877579149 is 941975778816.

618877579149 is a `hidden beast` number, since 6 + 1 + 8 + 8 + 7 + 7 + 579 + 1 + 49 = 666.

It is not a de Polignac number, because 618877579149 - 2¹⁶ = 618877513613 is a prime.

It is a super-3 number, since 3×618877579149³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618877579169) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 324528454 + ... + 324530360.

It is an arithmetic number, because the mean of its divisors is an integer number (19076855616).

Almost surely, 2^618877579149 is an apocalyptic number.

It is an amenable number.

618877579149 is a deficient number, since it is larger than the sum of its proper divisors (296811490419).

618877579149 is a wasteful number, since it uses less digits than its factorization.

618877579149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3854 (or 3851 counting only the distinct ones).

The product of its digits is 213373440, while the sum is 72.

The spelling of 618877579149 in words is "six hundred eighteen billion, eight hundred seventy-seven million, five hundred seventy-nine thousand, one hundred forty-nine".