87774311287 has 12 divisors (see below), whose sum is σ = 95986619784. Its totient is φ = 80220223200.

The previous prime is 87774311263. The next prime is 87774311327. The reversal of 87774311287 is 78211347778.

It is not a de Polignac number, because 87774311287 - 2⁷ = 87774311159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87774311587) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2554093 + ... + 2588230.

It is an arithmetic number, because the mean of its divisors is an integer number (7998884982).

Almost surely, 2^87774311287 is an apocalyptic number.

87774311287 is a deficient number, since it is larger than the sum of its proper divisors (8212308497).

87774311287 is a wasteful number, since it uses less digits than its factorization.

87774311287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5142450 (or 5142437 counting only the distinct ones).

The product of its digits is 3687936, while the sum is 55.

The spelling of 87774311287 in words is "eighty-seven billion, seven hundred seventy-four million, three hundred eleven thousand, two hundred eighty-seven".