618941679 has 12 divisors (see below), whose sum is σ = 830920776. Its totient is φ = 409814368.

The previous prime is 618941677. The next prime is 618941681. The reversal of 618941679 is 976149816.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (618941677) and next prime (618941681).

It is not a de Polignac number, because 618941679 - 2¹ = 618941677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618941671) 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, 61957 + ... + 71249.

It is an arithmetic number, because the mean of its divisors is an integer number (69243398).

Almost surely, 2^618941679 is an apocalyptic number.

618941679 is a deficient number, since it is larger than the sum of its proper divisors (211979097).

618941679 is an equidigital number, since it uses as much as digits as its factorization.

618941679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9594 (or 9445 counting only the distinct ones).

The product of its digits is 653184, while the sum is 51.

The square root of 618941679 is about 24878.5385221882. The cubic root of 618941679 is about 852.2164433346.

The spelling of 618941679 in words is "six hundred eighteen million, nine hundred forty-one thousand, six hundred seventy-nine".