2400202551543 has 4 divisors (see below), whose sum is σ = 3200270068728. Its totient is φ = 1600135034360.

The previous prime is 2400202551533. The next prime is 2400202551553. The reversal of 2400202551543 is 3451552020042.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2400202551533) and next prime (2400202551553).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2400202551543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2400202551533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400033758588 + ... + 400033758593.

It is an arithmetic number, because the mean of its divisors is an integer number (800067517182).

Almost surely, 2^{2400202551543} is an apocalyptic number.

2400202551543 is a deficient number, since it is larger than the sum of its proper divisors (800067517185).

2400202551543 is an equidigital number, since it uses as much as digits as its factorization.

2400202551543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800067517184.

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 2400202551543 its reverse (3451552020042), we get a palindrome (5851754571585).

The spelling of 2400202551543 in words is "two trillion, four hundred billion, two hundred two million, five hundred fifty-one thousand, five hundred forty-three".