90764859784946 has 4 divisors (see below), whose sum is σ = 136147289677422. Its totient is φ = 45382429892472.

The previous prime is 90764859784933. The next prime is 90764859784987. The reversal of 90764859784946 is 64948795846709.

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

It can be written as a sum of positive squares in only one way, i.e., 81124697955625 + 9640161829321 = 9006925^2 + 3104861^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22691214946235 + ... + 22691214946238.

Almost surely, 2^{90764859784946} is an apocalyptic number.

90764859784946 is a deficient number, since it is larger than the sum of its proper divisors (45382429892476).

90764859784946 is a wasteful number, since it uses less digits than its factorization.

90764859784946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45382429892475.

The product of its (nonzero) digits is 26336378880, while the sum is 86.

The spelling of 90764859784946 in words is "ninety trillion, seven hundred sixty-four billion, eight hundred fifty-nine million, seven hundred eighty-four thousand, nine hundred forty-six".