90971813302 has 4 divisors (see below), whose sum is σ = 136457719956. Its totient is φ = 45485906650.

The previous prime is 90971813297. The next prime is 90971813321. The reversal of 90971813302 is 20331817909.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22742953324 + ... + 22742953327.

It is an arithmetic number, because the mean of its divisors is an integer number (34114429989).

Almost surely, 2^90971813302 is an apocalyptic number.

90971813302 is a deficient number, since it is larger than the sum of its proper divisors (45485906654).

90971813302 is a wasteful number, since it uses less digits than its factorization.

90971813302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45485906653.

The product of its (nonzero) digits is 81648, while the sum is 43.

The spelling of 90971813302 in words is "ninety billion, nine hundred seventy-one million, eight hundred thirteen thousand, three hundred two".