618345048516 has 144 divisors (see below), whose sum is σ = 1685690178816. Its totient is φ = 175257686016.

The previous prime is 618345048481. The next prime is 618345048583. The reversal of 618345048516 is 615840543816.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1973040 + ... + 2264856.

Almost surely, 2^618345048516 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 618345048516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (842845089408).

618345048516 is an abundant number, since it is smaller than the sum of its proper divisors (1067345130300).

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

618345048516 is a wasteful number, since it uses less digits than its factorization.

618345048516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291918 (or 291899 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 51.

The spelling of 618345048516 in words is "six hundred eighteen billion, three hundred forty-five million, forty-eight thousand, five hundred sixteen".