2421451706831 has 2 divisors, whose sum is σ = 2421451706832. Its totient is φ = 2421451706830.

The previous prime is 2421451706743. The next prime is 2421451706833. The reversal of 2421451706831 is 1386071541242.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2421451706831 - 2³⁴ = 2404271837647 is a prime.

It is a super-2 number, since 2×2421451706831² (a number of 26 digits) contains 22 as substring.

Together with 2421451706833, 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 (2421451706833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210725853415 + 1210725853416.

It is an arithmetic number, because the mean of its divisors is an integer number (1210725853416).

Almost surely, 2^{2421451706831} is an apocalyptic number.

2421451706831 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421451706831 is an equidigital number, since it uses as much as digits as its factorization.

2421451706831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 2421451706831 in words is "two trillion, four hundred twenty-one billion, four hundred fifty-one million, seven hundred six thousand, eight hundred thirty-one".