2661752952431 has 2 divisors, whose sum is σ = 2661752952432. Its totient is φ = 2661752952430.

The previous prime is 2661752952421. The next prime is 2661752952433. The reversal of 2661752952431 is 1342592571662.

It is a happy number.

2661752952431 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2661752952431 is a prime.

It is a super-2 number, since 2×2661752952431² (a number of 26 digits) contains 22 as substring.

Together with 2661752952433, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2661752952433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330876476215 + 1330876476216.

It is an arithmetic number, because the mean of its divisors is an integer number (1330876476216).

Almost surely, 2^{2661752952431} is an apocalyptic number.

2661752952431 is a deficient number, since it is larger than the sum of its proper divisors (1).

2661752952431 is an equidigital number, since it uses as much as digits as its factorization.

2661752952431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5443200, while the sum is 53.

The spelling of 2661752952431 in words is "two trillion, six hundred sixty-one billion, seven hundred fifty-two million, nine hundred fifty-two thousand, four hundred thirty-one".