890287087745 has 32 divisors (see below), whose sum is σ = 1184669660160. Its totient is φ = 636888637440.

The previous prime is 890287087649. The next prime is 890287087787. The reversal of 890287087745 is 547780782098.

It is not a de Polignac number, because 890287087745 - 2¹⁸ = 890286825601 is a prime.

It is a super-2 number, since 2×890287087745² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 473552 + ... + 1415918.

It is an arithmetic number, because the mean of its divisors is an integer number (37020926880).

Almost surely, 2^890287087745 is an apocalyptic number.

It is an amenable number.

890287087745 is a deficient number, since it is larger than the sum of its proper divisors (294382572415).

890287087745 is a wasteful number, since it uses less digits than its factorization.

890287087745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942665.

The product of its (nonzero) digits is 63221760, while the sum is 65.

The spelling of 890287087745 in words is "eight hundred ninety billion, two hundred eighty-seven million, eighty-seven thousand, seven hundred forty-five".