3143752401969 has 63 divisors (see below), whose sum is σ = 4769611047057. Its totient is φ = 2071164536064.

The previous prime is 3143752401901. The next prime is 3143752402019. The reversal of 3143752401969 is 9691042573413.

The square root of 3143752401969 is 1773063.

It is a perfect power (a square), and thus also a powerful number.

3143752401969 is a `hidden beast` number, since 3 + 1 + 43 + 7 + 524 + 0 + 19 + 69 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1174052430369 + 1969699971600 = 1083537^2 + 1403460^2 .

It is not a de Polignac number, because 3143752401969 - 2²¹ = 3143750304817 is a prime.

It is a super-2 number, since 2×3143752401969² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3143752401469) by changing a digit.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 4643651659 + ... + 4643652335.

Almost surely, 2^{3143752401969} is an apocalyptic number.

3143752401969 is the 1773063-rd square number.

3143752401969 is the 886532-nd centered octagonal number.

It is an amenable number.

3143752401969 is a deficient number, since it is larger than the sum of its proper divisors (1625858645088).

3143752401969 is an frugal number, since it uses more digits than its factorization.

3143752401969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1566 (or 777 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 54.

The spelling of 3143752401969 in words is "three trillion, one hundred forty-three billion, seven hundred fifty-two million, four hundred one thousand, nine hundred sixty-nine".