2544957789431 has 4 divisors (see below), whose sum is σ = 2599105827552. Its totient is φ = 2490809751312.

The previous prime is 2544957789427. The next prime is 2544957789449. The reversal of 2544957789431 is 1349877594452.

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 2544957789431 - 2² = 2544957789427 is a prime.

It is a super-2 number, since 2×2544957789431² (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 (2544957789401) 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, 27074018990 + ... + 27074019083.

It is an arithmetic number, because the mean of its divisors is an integer number (649776456888).

Almost surely, 2^{2544957789431} is an apocalyptic number.

2544957789431 is a deficient number, since it is larger than the sum of its proper divisors (54148038121).

2544957789431 is an equidigital number, since it uses as much as digits as its factorization.

2544957789431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54148038120.

The product of its digits is 304819200, while the sum is 68.

The spelling of 2544957789431 in words is "two trillion, five hundred forty-four billion, nine hundred fifty-seven million, seven hundred eighty-nine thousand, four hundred thirty-one".