2400243621431 has 4 divisors (see below), whose sum is σ = 2424008409864. Its totient is φ = 2376478833000.

The previous prime is 2400243621427. The next prime is 2400243621449. The reversal of 2400243621431 is 1341263420042.

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

It is a cyclic number.

It is not a de Polignac number, because 2400243621431 - 2² = 2400243621427 is a prime.

It is a super-2 number, since 2×2400243621431² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2400243621401) 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, 11882394065 + ... + 11882394266.

It is an arithmetic number, because the mean of its divisors is an integer number (606002102466).

Almost surely, 2^{2400243621431} is an apocalyptic number.

2400243621431 is a deficient number, since it is larger than the sum of its proper divisors (23764788433).

2400243621431 is a wasteful number, since it uses less digits than its factorization.

2400243621431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23764788432.

The product of its (nonzero) digits is 27648, while the sum is 32.

The spelling of 2400243621431 in words is "two trillion, four hundred billion, two hundred forty-three million, six hundred twenty-one thousand, four hundred thirty-one".