90212612864042 has 8 divisors (see below), whose sum is σ = 135323757901056. Its totient is φ = 45104693563692.

The previous prime is 90212612864041. The next prime is 90212612864051. The reversal of 90212612864042 is 24046821621209.

90212612864042 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×90212612864042² (a number of 29 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 806364248 + ... + 806476115.

It is an arithmetic number, because the mean of its divisors is an integer number (16915469737632).

Almost surely, 2^{90212612864042} is an apocalyptic number.

90212612864042 is a deficient number, since it is larger than the sum of its proper divisors (45111145037014).

90212612864042 is a wasteful number, since it uses less digits than its factorization.

90212612864042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1612868332.

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 90212612864042 in words is "ninety trillion, two hundred twelve billion, six hundred twelve million, eight hundred sixty-four thousand, forty-two".