618290849936256 has 384 divisors, whose sum is σ = 1972232008427520. Its totient is φ = 170944510464000.

The previous prime is 618290849936237. The next prime is 618290849936269. The reversal of 618290849936256 is 652639948092816.

It is a tau number, because it is divible by the number of its divisors (384).

It is a super-2 number, since 2×618290849936256² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

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, 12360600526 + ... + 12360650546.

It is an arithmetic number, because the mean of its divisors is an integer number (5136020855280).

Almost surely, 2^{618290849936256} 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 618290849936256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (986116004213760).

618290849936256 is an abundant number, since it is smaller than the sum of its proper divisors (1353941158491264).

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

618290849936256 is a wasteful number, since it uses less digits than its factorization.

618290849936256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71274 (or 71255 counting only the distinct ones).

The product of its (nonzero) digits is 2418647040, while the sum is 78.

The spelling of 618290849936256 in words is "six hundred eighteen trillion, two hundred ninety billion, eight hundred forty-nine million, nine hundred thirty-six thousand, two hundred fifty-six".