87916994063 has 4 divisors (see below), whose sum is σ = 87917587080. Its totient is φ = 87916401048.

The previous prime is 87916994029. The next prime is 87916994071. The reversal of 87916994063 is 36049961978.

It is a Cunningham number, because it is equal to 296508²-1.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 87916994063 - 2¹² = 87916989967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87916993987 and 87916994005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87916994093) 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, 148253 + ... + 444761.

It is an arithmetic number, because the mean of its divisors is an integer number (21979396770).

Almost surely, 2^87916994063 is an apocalyptic number.

87916994063 is a deficient number, since it is larger than the sum of its proper divisors (593017).

87916994063 is a wasteful number, since it uses less digits than its factorization.

87916994063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593016.

The product of its (nonzero) digits is 17635968, while the sum is 62.

The spelling of 87916994063 in words is "eighty-seven billion, nine hundred sixteen million, nine hundred ninety-four thousand, sixty-three".