90212612864045 has 32 divisors (see below), whose sum is σ = 124636797847296. Its totient is φ = 61401854246400.

The previous prime is 90212612864041. The next prime is 90212612864051. The reversal of 90212612864045 is 54046821621209.

It is not a de Polignac number, because 90212612864045 - 2² = 90212612864041 is a prime.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 90212612863984 and 90212612864002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90212612864041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43194530 + ... + 45234860.

It is an arithmetic number, because the mean of its divisors is an integer number (3894899932728).

Almost surely, 2^{90212612864045} is an apocalyptic number.

It is an amenable number.

90212612864045 is a deficient number, since it is larger than the sum of its proper divisors (34424184983251).

90212612864045 is a wasteful number, since it uses less digits than its factorization.

90212612864045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049701.

The product of its (nonzero) digits is 1658880, while the sum is 50.

The spelling of 90212612864045 in words is "ninety trillion, two hundred twelve billion, six hundred twelve million, eight hundred sixty-four thousand, forty-five".