618540425052 has 96 divisors (see below), whose sum is σ = 1591473671424. Its totient is φ = 185416896000.

The previous prime is 618540425051. The next prime is 618540425059. The reversal of 618540425052 is 250524045816.

It is a junction number, because it is equal to n+sod(n) for n = 618540424995 and 618540425013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618540425051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9869688 + ... + 9932160.

It is an arithmetic number, because the mean of its divisors is an integer number (16577850744).

Almost surely, 2^618540425052 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 618540425052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (795736835712).

618540425052 is an abundant number, since it is smaller than the sum of its proper divisors (972933246372).

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

618540425052 is a wasteful number, since it uses less digits than its factorization.

618540425052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63299 (or 63297 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 42.

The spelling of 618540425052 in words is "six hundred eighteen billion, five hundred forty million, four hundred twenty-five thousand, fifty-two".