3125243343640 has 32 divisors (see below), whose sum is σ = 7671051844560. Its totient is φ = 1136452124800.

The previous prime is 3125243343589. The next prime is 3125243343643. The reversal of 3125243343640 is 463433425213.

3125243343640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3125243343640² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 3125243343593 and 3125243343602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3125243343643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3551412451 + ... + 3551413330.

Almost surely, 2^{3125243343640} is an apocalyptic number.

It is an amenable number.

3125243343640 is an abundant number, since it is smaller than the sum of its proper divisors (4545808500920).

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

3125243343640 is a wasteful number, since it uses less digits than its factorization.

3125243343640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7102825803 (or 7102825799 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 40.

Adding to 3125243343640 its reverse (463433425213), we get a palindrome (3588676768853).

The spelling of 3125243343640 in words is "three trillion, one hundred twenty-five billion, two hundred forty-three million, three hundred forty-three thousand, six hundred forty".