87956681759 has 2 divisors, whose sum is σ = 87956681760. Its totient is φ = 87956681758.

The previous prime is 87956681693. The next prime is 87956681789. The reversal of 87956681759 is 95718665978.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87956681759 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87956681692 and 87956681701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87956681789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43978340879 + 43978340880.

It is an arithmetic number, because the mean of its divisors is an integer number (43978340880).

Almost surely, 2^87956681759 is an apocalyptic number.

87956681759 is a deficient number, since it is larger than the sum of its proper divisors (1).

87956681759 is an equidigital number, since it uses as much as digits as its factorization.

87956681759 is an evil number, because the sum of its binary digits is even.

The product of its digits is 228614400, while the sum is 71.

The spelling of 87956681759 in words is "eighty-seven billion, nine hundred fifty-six million, six hundred eighty-one thousand, seven hundred fifty-nine".