87812310727 has 2 divisors, whose sum is σ = 87812310728. Its totient is φ = 87812310726.

The previous prime is 87812310721. The next prime is 87812310737. The reversal of 87812310727 is 72701321878.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87812310727 - 2²³ = 87803922119 is a prime.

It is a super-2 number, since 2×87812310727² (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 (87812310721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43906155363 + 43906155364.

It is an arithmetic number, because the mean of its divisors is an integer number (43906155364).

Almost surely, 2^87812310727 is an apocalyptic number.

87812310727 is a deficient number, since it is larger than the sum of its proper divisors (1).

87812310727 is an equidigital number, since it uses as much as digits as its factorization.

87812310727 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 263424, while the sum is 46.

The spelling of 87812310727 in words is "eighty-seven billion, eight hundred twelve million, three hundred ten thousand, seven hundred twenty-seven".