618606788 has 12 divisors (see below), whose sum is σ = 1139538960. Its totient is φ = 293024232.

The previous prime is 618606787. The next prime is 618606841. The reversal of 618606788 is 887606816.

It is not an unprimeable number, because it can be changed into a prime (618606787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4069706 + ... + 4069857.

It is an arithmetic number, because the mean of its divisors is an integer number (94961580).

Almost surely, 2^618606788 is an apocalyptic number.

It is an amenable number.

618606788 is a deficient number, since it is larger than the sum of its proper divisors (520932172).

618606788 is a wasteful number, since it uses less digits than its factorization.

618606788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8139586 (or 8139584 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 50.

The square root of 618606788 is about 24871.8070915645. The cubic root of 618606788 is about 852.0627125843.

The spelling of 618606788 in words is "six hundred eighteen million, six hundred six thousand, seven hundred eighty-eight".