87731266051043 has 2 divisors, whose sum is σ = 87731266051044. Its totient is φ = 87731266051042.

The previous prime is 87731266050929. The next prime is 87731266051057. The reversal of 87731266051043 is 34015066213778.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87731266051043 - 2¹² = 87731266046947 is a prime.

It is not a weakly prime, because it can be changed into another prime (87731266051073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43865633025521 + 43865633025522.

It is an arithmetic number, because the mean of its divisors is an integer number (43865633025522).

Almost surely, 2^{87731266051043} is an apocalyptic number.

87731266051043 is a deficient number, since it is larger than the sum of its proper divisors (1).

87731266051043 is an equidigital number, since it uses as much as digits as its factorization.

87731266051043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5080320, while the sum is 53.

The spelling of 87731266051043 in words is "eighty-seven trillion, seven hundred thirty-one billion, two hundred sixty-six million, fifty-one thousand, forty-three".