618495342873912 has 768 divisors, whose sum is σ = 2203094296166400. Its totient is φ = 158564719549440.

The previous prime is 618495342873883. The next prime is 618495342873971. The reversal of 618495342873912 is 219378243594816.

618495342873912 is a `hidden beast` number, since 6 + 1 + 8 + 4 + 9 + 534 + 2 + 8 + 73 + 9 + 12 = 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 191 ways as a sum of consecutive naturals, for example, 375889348 + ... + 377531180.

It is an arithmetic number, because the mean of its divisors is an integer number (2868612364800).

Almost surely, 2^{618495342873912} is an apocalyptic number.

618495342873912 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 618495342873912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1101547148083200).

618495342873912 is an abundant number, since it is smaller than the sum of its proper divisors (1584598953292488).

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

618495342873912 is a wasteful number, since it uses less digits than its factorization.

618495342873912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1641958 (or 1641942 counting only the distinct ones).

The product of its digits is 627056640, while the sum is 72.

The spelling of 618495342873912 in words is "six hundred eighteen trillion, four hundred ninety-five billion, three hundred forty-two million, eight hundred seventy-three thousand, nine hundred twelve".