87031004445 has 320 divisors, whose sum is σ = 205943316480. Its totient is φ = 34088947200.

The previous prime is 87031004443. The next prime is 87031004447. The reversal of 87031004445 is 54440013078.

It is an interprime number because it is at equal distance from previous prime (87031004443) and next prime (87031004447).

It is not a de Polignac number, because 87031004445 - 2¹ = 87031004443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87031004443) by changing a digit.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 50924251 + ... + 50925959.

It is an arithmetic number, because the mean of its divisors is an integer number (643572864).

Almost surely, 2^87031004445 is an apocalyptic number.

It is an amenable number.

87031004445 is an abundant number, since it is smaller than the sum of its proper divisors (118912312035).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87031004445 is a wasteful number, since it uses less digits than its factorization.

87031004445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838 (or 1829 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The spelling of 87031004445 in words is "eighty-seven billion, thirty-one million, four thousand, four hundred forty-five".