1312918354260 has 144 divisors (see below), whose sum is σ = 4059844903296. Its totient is φ = 343320796416.

The previous prime is 1312918354229. The next prime is 1312918354277. The reversal of 1312918354260 is 624538192131.

1312918354260 is a `hidden beast` number, since 1 + 3 + 1 + 29 + 1 + 83 + 542 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 18156697 + ... + 18228863.

It is an arithmetic number, because the mean of its divisors is an integer number (28193367384).

Almost surely, 2^{1312918354260} is an apocalyptic number.

1312918354260 is a gapful number since it is divisible by the number (10) 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 1312918354260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2029922451648).

1312918354260 is an abundant number, since it is smaller than the sum of its proper divisors (2746926549036).

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

1312918354260 is a wasteful number, since it uses less digits than its factorization.

1312918354260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74142 (or 74137 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 1312918354260 in words is "one trillion, three hundred twelve billion, nine hundred eighteen million, three hundred fifty-four thousand, two hundred sixty".