87299751811 has 2 divisors, whose sum is σ = 87299751812. Its totient is φ = 87299751810.

The previous prime is 87299751767. The next prime is 87299751821. The reversal of 87299751811 is 11815799278.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87299751811 - 2³¹ = 85152268163 is a prime.

It is not a weakly prime, because it can be changed into another prime (87299751821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43649875905 + 43649875906.

It is an arithmetic number, because the mean of its divisors is an integer number (43649875906).

Almost surely, 2^87299751811 is an apocalyptic number.

87299751811 is a deficient number, since it is larger than the sum of its proper divisors (1).

87299751811 is an equidigital number, since it uses as much as digits as its factorization.

87299751811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2540160, while the sum is 58.

The spelling of 87299751811 in words is "eighty-seven billion, two hundred ninety-nine million, seven hundred fifty-one thousand, eight hundred eleven".