90467071202021 has 32 divisors (see below), whose sum is σ = 97987413934080. Its totient is φ = 83299303112256.

The previous prime is 90467071201981. The next prime is 90467071202041. The reversal of 90467071202021 is 12020217076409.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90467071202021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90467071202021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90467071202041) 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, 37633820 + ... + 39965466.

It is an arithmetic number, because the mean of its divisors is an integer number (3062106685440).

Almost surely, 2^{90467071202021} is an apocalyptic number.

It is an amenable number.

90467071202021 is a deficient number, since it is larger than the sum of its proper divisors (7520342732059).

90467071202021 is a wasteful number, since it uses less digits than its factorization.

90467071202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2332193.

The product of its (nonzero) digits is 84672, while the sum is 41.

The spelling of 90467071202021 in words is "ninety trillion, four hundred sixty-seven billion, seventy-one million, two hundred two thousand, twenty-one".