87441368431 has 2 divisors, whose sum is σ = 87441368432. Its totient is φ = 87441368430.

The previous prime is 87441368411. The next prime is 87441368507. The reversal of 87441368431 is 13486314478.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87441368431 - 2¹⁹ = 87440844143 is a prime.

It is a super-2 number, since 2×87441368431² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87441368411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43720684215 + 43720684216.

It is an arithmetic number, because the mean of its divisors is an integer number (43720684216).

Almost surely, 2^87441368431 is an apocalyptic number.

87441368431 is a deficient number, since it is larger than the sum of its proper divisors (1).

87441368431 is an equidigital number, since it uses as much as digits as its factorization.

87441368431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1548288, while the sum is 49.

The spelling of 87441368431 in words is "eighty-seven billion, four hundred forty-one million, three hundred sixty-eight thousand, four hundred thirty-one".