618039817672 has 64 divisors (see below), whose sum is σ = 1228908326400. Its totient is φ = 290880875520.

The previous prime is 618039817667. The next prime is 618039817691. The reversal of 618039817672 is 276718930816.

618039817672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37971328 + ... + 37987600.

It is an arithmetic number, because the mean of its divisors is an integer number (19201692600).

Almost surely, 2^618039817672 is an apocalyptic number.

618039817672 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

618039817672 is a deficient number, since it is larger than the sum of its proper divisors (610868508728).

618039817672 is a wasteful number, since it uses less digits than its factorization.

618039817672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20486 (or 20482 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 58.

The spelling of 618039817672 in words is "six hundred eighteen billion, thirty-nine million, eight hundred seventeen thousand, six hundred seventy-two".