87423012777 has 16 divisors (see below), whose sum is σ = 117059954688. Its totient is φ = 58034540160.

The previous prime is 87423012757. The next prime is 87423012871. The reversal of 87423012777 is 77721032478.

It is not a de Polignac number, because 87423012777 - 2²⁴ = 87406235561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87423012707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 642277 + ... + 766397.

It is an arithmetic number, because the mean of its divisors is an integer number (7316247168).

Almost surely, 2^87423012777 is an apocalyptic number.

It is an amenable number.

87423012777 is a deficient number, since it is larger than the sum of its proper divisors (29636941911).

87423012777 is a wasteful number, since it uses less digits than its factorization.

87423012777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125120.

The product of its (nonzero) digits is 921984, while the sum is 48.

The spelling of 87423012777 in words is "eighty-seven billion, four hundred twenty-three million, twelve thousand, seven hundred seventy-seven".