618693148643 has 8 divisors (see below), whose sum is σ = 659102404800. Its totient is φ = 579068538408.

The previous prime is 618693148547. The next prime is 618693148657. The reversal of 618693148643 is 346841396816.

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 618693148643 - 2¹⁰ = 618693147619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (618693148663) 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, 196159853 + ... + 196163006.

It is an arithmetic number, because the mean of its divisors is an integer number (82387800600).

Almost surely, 2^618693148643 is an apocalyptic number.

618693148643 is a deficient number, since it is larger than the sum of its proper divisors (40409256157).

618693148643 is a wasteful number, since it uses less digits than its factorization.

618693148643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392322961.

The product of its digits is 17915904, while the sum is 59.

The spelling of 618693148643 in words is "six hundred eighteen billion, six hundred ninety-three million, one hundred forty-eight thousand, six hundred forty-three".