618298501481856 has 1024 divisors, whose sum is σ = 2123588971929600. Its totient is φ = 175406042972160.

The previous prime is 618298501481809. The next prime is 618298501481879. The reversal of 618298501481856 is 658184105892816.

618298501481856 is a `hidden beast` number, since 6 + 1 + 8 + 2 + 98 + 5 + 0 + 1 + 481 + 8 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8513774761 + ... + 8513847383.

It is an arithmetic number, because the mean of its divisors is an integer number (2073817355400).

Almost surely, 2^{618298501481856} 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 618298501481856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1061794485964800).

618298501481856 is an abundant number, since it is smaller than the sum of its proper divisors (1505290470447744).

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

618298501481856 is a wasteful number, since it uses less digits than its factorization.

618298501481856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72904 (or 72886 counting only the distinct ones).

The product of its (nonzero) digits is 265420800, while the sum is 72.

The spelling of 618298501481856 in words is "six hundred eighteen trillion, two hundred ninety-eight billion, five hundred one million, four hundred eighty-one thousand, eight hundred fifty-six".