618123648949 has 8 divisors (see below), whose sum is σ = 622393439360. Its totient is φ = 613856178000.

The previous prime is 618123648917. The next prime is 618123648959. The reversal of 618123648949 is 949846321816.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 618123648949 - 2⁵ = 618123648917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618123648959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43329 + ... + 1112710.

It is an arithmetic number, because the mean of its divisors is an integer number (77799179920).

Almost surely, 2^618123648949 is an apocalyptic number.

It is an amenable number.

618123648949 is a deficient number, since it is larger than the sum of its proper divisors (4269790411).

618123648949 is a wasteful number, since it uses less digits than its factorization.

618123648949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159731.

The product of its digits is 17915904, while the sum is 61.

The spelling of 618123648949 in words is "six hundred eighteen billion, one hundred twenty-three million, six hundred forty-eight thousand, nine hundred forty-nine".