90318292906 has 8 divisors (see below), whose sum is σ = 135494274240. Its totient is φ = 45153534828.

The previous prime is 90318292879. The next prime is 90318292927. The reversal of 90318292906 is 60929281309.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 90318292906.

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 3 ways as a sum of consecutive naturals, for example, 2785666 + ... + 2817901.

It is an arithmetic number, because the mean of its divisors is an integer number (16936784280).

Almost surely, 2^90318292906 is an apocalyptic number.

90318292906 is a deficient number, since it is larger than the sum of its proper divisors (45175981334).

90318292906 is a wasteful number, since it uses less digits than its factorization.

90318292906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5611628.

The product of its (nonzero) digits is 419904, while the sum is 49.

The spelling of 90318292906 in words is "ninety billion, three hundred eighteen million, two hundred ninety-two thousand, nine hundred six".