89826990870021 has 16 divisors (see below), whose sum is σ = 127308017291904. Its totient is φ = 56142725955584.

The previous prime is 89826990869989. The next prime is 89826990870059. The reversal of 89826990870021 is 12007809962898.

It is a cyclic number.

It is not a de Polignac number, because 89826990870021 - 2⁵ = 89826990869989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89826990878021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3426666945 + ... + 3426693158.

It is an arithmetic number, because the mean of its divisors is an integer number (7956751080744).

Almost surely, 2^{89826990870021} is an apocalyptic number.

It is an amenable number.

89826990870021 is a deficient number, since it is larger than the sum of its proper divisors (37481026421883).

89826990870021 is a wasteful number, since it uses less digits than its factorization.

89826990870021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6853360380.

The product of its (nonzero) digits is 62705664, while the sum is 69.

The spelling of 89826990870021 in words is "eighty-nine trillion, eight hundred twenty-six billion, nine hundred ninety million, eight hundred seventy thousand, twenty-one".