87586870279081 has 2 divisors, whose sum is σ = 87586870279082. Its totient is φ = 87586870279080.

The previous prime is 87586870278983. The next prime is 87586870279147. The reversal of 87586870279081 is 18097207868578.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81409115290000 + 6177754989081 = 9022700^2 + 2485509^2 .

It is a cyclic number.

It is not a de Polignac number, because 87586870279081 - 2³¹ = 87584722795433 is a prime.

It is a super-2 number, since 2×87586870279081² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 87586870278989 and 87586870279007.

It is not a weakly prime, because it can be changed into another prime (87586870979081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43793435139540 + 43793435139541.

It is an arithmetic number, because the mean of its divisors is an integer number (43793435139541).

Almost surely, 2^{87586870279081} is an apocalyptic number.

It is an amenable number.

87586870279081 is a deficient number, since it is larger than the sum of its proper divisors (1).

87586870279081 is an equidigital number, since it uses as much as digits as its factorization.

87586870279081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 758661120, while the sum is 76.

The spelling of 87586870279081 in words is "eighty-seven trillion, five hundred eighty-six billion, eight hundred seventy million, two hundred seventy-nine thousand, eighty-one".