618763968 has 112 divisors (see below), whose sum is σ = 1877893120. Its totient is φ = 199584000.

The previous prime is 618763949. The next prime is 618763969. The reversal of 618763968 is 869367816.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (618763969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47793 + ... + 59343.

Almost surely, 2^618763968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 618763968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (938946560).

618763968 is an abundant number, since it is smaller than the sum of its proper divisors (1259129152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

618763968 is a wasteful number, since it uses less digits than its factorization.

618763968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11603 (or 11587 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 618763968 is about 24874.9666934450. The cubic root of 618763968 is about 852.1348725187.

The spelling of 618763968 in words is "six hundred eighteen million, seven hundred sixty-three thousand, nine hundred sixty-eight".