87071293451 has 2 divisors, whose sum is σ = 87071293452. Its totient is φ = 87071293450.

The previous prime is 87071293391. The next prime is 87071293469. The reversal of 87071293451 is 15439217078.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87071293451 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 87071293396 and 87071293405.

It is not a weakly prime, because it can be changed into another prime (87071293471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43535646725 + 43535646726.

It is an arithmetic number, because the mean of its divisors is an integer number (43535646726).

Almost surely, 2^87071293451 is an apocalyptic number.

87071293451 is a deficient number, since it is larger than the sum of its proper divisors (1).

87071293451 is an equidigital number, since it uses as much as digits as its factorization.

87071293451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 47.

The spelling of 87071293451 in words is "eighty-seven billion, seventy-one million, two hundred ninety-three thousand, four hundred fifty-one".