90212612864047 has 8 divisors (see below), whose sum is σ = 93122886227072. Its totient is φ = 87302351318400.

The previous prime is 90212612864041. The next prime is 90212612864051. The reversal of 90212612864047 is 74046821621209.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90212612864047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90212612863985 and 90212612864003.

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 7 ways as a sum of consecutive naturals, for example, 14127523 + ... + 19493899.

It is an arithmetic number, because the mean of its divisors is an integer number (11640360778384).

Almost surely, 2^{90212612864047} is an apocalyptic number.

90212612864047 is a deficient number, since it is larger than the sum of its proper divisors (2910273363025).

90212612864047 is a wasteful number, since it uses less digits than its factorization.

90212612864047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5908689.

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 90212612864047 in words is "ninety trillion, two hundred twelve billion, six hundred twelve million, eight hundred sixty-four thousand, forty-seven".