87894458837 has 4 divisors (see below), whose sum is σ = 87975023136. Its totient is φ = 87813894540.

The previous prime is 87894458809. The next prime is 87894458851. The reversal of 87894458837 is 73885449878.

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 a cyclic number.

It is not a de Polignac number, because 87894458837 - 2⁸ = 87894458581 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 (87894458857) 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 3 ways as a sum of consecutive naturals, for example, 40280513 + ... + 40282694.

It is an arithmetic number, because the mean of its divisors is an integer number (21993755784).

Almost surely, 2^87894458837 is an apocalyptic number.

It is an amenable number.

87894458837 is a deficient number, since it is larger than the sum of its proper divisors (80564299).

87894458837 is a wasteful number, since it uses less digits than its factorization.

87894458837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80564298.

The product of its digits is 433520640, while the sum is 71.

The spelling of 87894458837 in words is "eighty-seven billion, eight hundred ninety-four million, four hundred fifty-eight thousand, eight hundred thirty-seven".