1531868912364 has 96 divisors (see below), whose sum is σ = 4143484800000. Its totient is φ = 431411742720.

The previous prime is 1531868912309. The next prime is 1531868912407. The reversal of 1531868912364 is 4632198681351.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27699012 + ... + 27754260.

It is an arithmetic number, because the mean of its divisors is an integer number (43161300000).

Almost surely, 2^{1531868912364} is an apocalyptic number.

1531868912364 is a gapful number since it is divisible by the number (14) 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 1531868912364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2071742400000).

1531868912364 is an abundant number, since it is smaller than the sum of its proper divisors (2611615887636).

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

1531868912364 is a wasteful number, since it uses less digits than its factorization.

1531868912364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59983 (or 59981 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 57.

The spelling of 1531868912364 in words is "one trillion, five hundred thirty-one billion, eight hundred sixty-eight million, nine hundred twelve thousand, three hundred sixty-four".