618391814628 has 192 divisors, whose sum is σ = 1836826951680. Its totient is φ = 157850985600.

The previous prime is 618391814603. The next prime is 618391814671. The reversal of 618391814628 is 826418193816.

618391814628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2487633 + ... + 2724903.

It is an arithmetic number, because the mean of its divisors is an integer number (9566807040).

Almost surely, 2^618391814628 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 618391814628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (918413475840).

618391814628 is an abundant number, since it is smaller than the sum of its proper divisors (1218435137052).

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

618391814628 is a wasteful number, since it uses less digits than its factorization.

618391814628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237398 (or 237396 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 57.

The spelling of 618391814628 in words is "six hundred eighteen billion, three hundred ninety-one million, eight hundred fourteen thousand, six hundred twenty-eight".