90802623506 has 8 divisors (see below), whose sum is σ = 155661640320. Its totient is φ = 38915410068.

The previous prime is 90802623469. The next prime is 90802623523. The reversal of 90802623506 is 60532620809.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3242950826 + ... + 3242950853.

It is an arithmetic number, because the mean of its divisors is an integer number (19457705040).

Almost surely, 2^90802623506 is an apocalyptic number.

90802623506 is a deficient number, since it is larger than the sum of its proper divisors (64859016814).

90802623506 is a wasteful number, since it uses less digits than its factorization.

90802623506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6485901688.

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 90802623506 in words is "ninety billion, eight hundred two million, six hundred twenty-three thousand, five hundred six".