87389756455161 has 4 divisors (see below), whose sum is σ = 116519675273552. Its totient is φ = 58259837636772.

The previous prime is 87389756455153. The next prime is 87389756455219. The reversal of 87389756455161 is 16155465798378.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 87389756455161 - 2³ = 87389756455153 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87389756451161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14564959409191 + ... + 14564959409196.

It is an arithmetic number, because the mean of its divisors is an integer number (29129918818388).

Almost surely, 2^{87389756455161} is an apocalyptic number.

It is an amenable number.

87389756455161 is a deficient number, since it is larger than the sum of its proper divisors (29129918818391).

87389756455161 is a wasteful number, since it uses less digits than its factorization.

87389756455161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29129918818390.

The product of its digits is 1524096000, while the sum is 75.

The spelling of 87389756455161 in words is "eighty-seven trillion, three hundred eighty-nine billion, seven hundred fifty-six million, four hundred fifty-five thousand, one hundred sixty-one".