618495647 has 8 divisors (see below), whose sum is σ = 771111552. Its totient is φ = 481944600.

The previous prime is 618495641. The next prime is 618495707. The reversal of 618495647 is 746594816.

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 618495647 - 2¹⁴ = 618479263 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 618495595 and 618495604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618495641) 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, 4016129 + ... + 4016282.

It is an arithmetic number, because the mean of its divisors is an integer number (96388944).

Almost surely, 2^618495647 is an apocalyptic number.

618495647 is a deficient number, since it is larger than the sum of its proper divisors (152615905).

618495647 is a wasteful number, since it uses less digits than its factorization.

618495647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8032429.

The product of its digits is 1451520, while the sum is 50.

The square root of 618495647 is about 24869.5727144638. The cubic root of 618495647 is about 852.0116813661.

The spelling of 618495647 in words is "six hundred eighteen million, four hundred ninety-five thousand, six hundred forty-seven".