87758137543 has 2 divisors, whose sum is σ = 87758137544. Its totient is φ = 87758137542.

The previous prime is 87758137507. The next prime is 87758137627. The reversal of 87758137543 is 34573185778.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87758137543 - 2¹⁷ = 87758006471 is a prime.

It is a super-2 number, since 2×87758137543² (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 (87758137043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43879068771 + 43879068772.

It is an arithmetic number, because the mean of its divisors is an integer number (43879068772).

Almost surely, 2^87758137543 is an apocalyptic number.

87758137543 is a deficient number, since it is larger than the sum of its proper divisors (1).

87758137543 is an equidigital number, since it uses as much as digits as its factorization.

87758137543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19756800, while the sum is 58.

The spelling of 87758137543 in words is "eighty-seven billion, seven hundred fifty-eight million, one hundred thirty-seven thousand, five hundred forty-three".