618639150008 has 48 divisors (see below), whose sum is σ = 1276869250440. Its totient is φ = 280783954880.

The previous prime is 618639149987. The next prime is 618639150091. The reversal of 618639150008 is 800051936816.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183335 + ... + 1127337.

Almost surely, 2^618639150008 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 618639150008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (638434625220).

618639150008 is an abundant number, since it is smaller than the sum of its proper divisors (658230100432).

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

618639150008 is a wasteful number, since it uses less digits than its factorization.

618639150008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944708 (or 944693 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 47.

The spelling of 618639150008 in words is "six hundred eighteen billion, six hundred thirty-nine million, one hundred fifty thousand, eight".