445718870087 has 4 divisors (see below), whose sum is σ = 447003362856. Its totient is φ = 444434377320.

The previous prime is 445718870063. The next prime is 445718870101. The reversal of 445718870087 is 780078817544.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 445718870087 - 2³⁸ = 170840963143 is a prime.

It is a super-2 number, since 2×445718870087² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445718870017) 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, 642245864 + ... + 642246557.

It is an arithmetic number, because the mean of its divisors is an integer number (111750840714).

Almost surely, 2^445718870087 is an apocalyptic number.

445718870087 is a deficient number, since it is larger than the sum of its proper divisors (1284492769).

445718870087 is a wasteful number, since it uses less digits than its factorization.

445718870087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284492768.

The product of its (nonzero) digits is 14049280, while the sum is 59.

The spelling of 445718870087 in words is "four hundred forty-five billion, seven hundred eighteen million, eight hundred seventy thousand, eighty-seven".