87107264477 has 2 divisors, whose sum is σ = 87107264478. Its totient is φ = 87107264476.

The previous prime is 87107264399. The next prime is 87107264483. The reversal of 87107264477 is 77446270178.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71072360836 + 16034903641 = 266594^2 + 126629^2 .

It is a cyclic number.

It is not a de Polignac number, because 87107264477 - 2³² = 82812297181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87107264177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43553632238 + 43553632239.

It is an arithmetic number, because the mean of its divisors is an integer number (43553632239).

Almost surely, 2^87107264477 is an apocalyptic number.

It is an amenable number.

87107264477 is a deficient number, since it is larger than the sum of its proper divisors (1).

87107264477 is an equidigital number, since it uses as much as digits as its factorization.

87107264477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3687936, while the sum is 53.

The spelling of 87107264477 in words is "eighty-seven billion, one hundred seven million, two hundred sixty-four thousand, four hundred seventy-seven".