87767365033 has 2 divisors, whose sum is σ = 87767365034. Its totient is φ = 87767365032.

The previous prime is 87767365031. The next prime is 87767365067. The reversal of 87767365033 is 33056376778.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50457738384 + 37309626649 = 224628^2 + 193157^2 .

It is a cyclic number.

It is not a de Polignac number, because 87767365033 - 2¹ = 87767365031 is a prime.

It is a super-2 number, since 2×87767365033² (a number of 23 digits) contains 22 as substring.

Together with 87767365031, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (87767365031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43883682516 + 43883682517.

It is an arithmetic number, because the mean of its divisors is an integer number (43883682517).

Almost surely, 2^87767365033 is an apocalyptic number.

It is an amenable number.

87767365033 is a deficient number, since it is larger than the sum of its proper divisors (1).

87767365033 is an equidigital number, since it uses as much as digits as its factorization.

87767365033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13335840, while the sum is 55.

The spelling of 87767365033 in words is "eighty-seven billion, seven hundred sixty-seven million, three hundred sixty-five thousand, thirty-three".