866326902490 has 32 divisors (see below), whose sum is σ = 1782252532224. Its totient is φ = 297010644480.

The previous prime is 866326902479. The next prime is 866326902547. The reversal of 866326902490 is 94209623668.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1045162 + ... + 1680778.

It is an arithmetic number, because the mean of its divisors is an integer number (55695391632).

Almost surely, 2^866326902490 is an apocalyptic number.

866326902490 is an abundant number, since it is smaller than the sum of its proper divisors (915925629734).

866326902490 is a wasteful number, since it uses less digits than its factorization.

866326902490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655102.

The product of its (nonzero) digits is 6718464, while the sum is 55.

The spelling of 866326902490 in words is "eight hundred sixty-six billion, three hundred twenty-six million, nine hundred two thousand, four hundred ninety".