87133939663 has 2 divisors, whose sum is σ = 87133939664. Its totient is φ = 87133939662.

The previous prime is 87133939649. The next prime is 87133939679. The reversal of 87133939663 is 36693933178.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87133939663 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87133939598 and 87133939607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87133939363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43566969831 + 43566969832.

It is an arithmetic number, because the mean of its divisors is an integer number (43566969832).

Almost surely, 2^87133939663 is an apocalyptic number.

87133939663 is a deficient number, since it is larger than the sum of its proper divisors (1).

87133939663 is an equidigital number, since it uses as much as digits as its factorization.

87133939663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13226976, while the sum is 58.

The spelling of 87133939663 in words is "eighty-seven billion, one hundred thirty-three million, nine hundred thirty-nine thousand, six hundred sixty-three".