90963911947 has 4 divisors (see below), whose sum is σ = 95751486280. Its totient is φ = 86176337616.

The previous prime is 90963911903. The next prime is 90963911957. The reversal of 90963911947 is 74911936909.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90963911947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90963911891 and 90963911900.

It is not an unprimeable number, because it can be changed into a prime (90963911957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2393787138 + ... + 2393787175.

It is an arithmetic number, because the mean of its divisors is an integer number (23937871570).

Almost surely, 2^90963911947 is an apocalyptic number.

90963911947 is a deficient number, since it is larger than the sum of its proper divisors (4787574333).

90963911947 is a wasteful number, since it uses less digits than its factorization.

90963911947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4787574332.

The product of its (nonzero) digits is 3306744, while the sum is 58.

The spelling of 90963911947 in words is "ninety billion, nine hundred sixty-three million, nine hundred eleven thousand, nine hundred forty-seven".