618622020697 has 8 divisors (see below), whose sum is σ = 628695853632. Its totient is φ = 608585989200.

The previous prime is 618622020689. The next prime is 618622020739. The reversal of 618622020697 is 796020226816.

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 618622020697 - 2³ = 618622020689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 618622020697.

It is not an unprimeable number, because it can be changed into a prime (618622020637) 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, 9417363 + ... + 9482824.

It is an arithmetic number, because the mean of its divisors is an integer number (78586981704).

Almost surely, 2^618622020697 is an apocalyptic number.

It is an amenable number.

618622020697 is a deficient number, since it is larger than the sum of its proper divisors (10073832935).

618622020697 is a wasteful number, since it uses less digits than its factorization.

618622020697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18900719.

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 618622020697 in words is "six hundred eighteen billion, six hundred twenty-two million, twenty thousand, six hundred ninety-seven".