100085426621 has 4 divisors (see below), whose sum is σ = 100091780544. Its totient is φ = 100079072700.

The previous prime is 100085426569. The next prime is 100085426657. The reversal of 100085426621 is 126624580001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100085426621 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100085428621) 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, 3153275 + ... + 3184856.

It is an arithmetic number, because the mean of its divisors is an integer number (25022945136).

Almost surely, 2^100085426621 is an apocalyptic number.

It is an amenable number.

100085426621 is a deficient number, since it is larger than the sum of its proper divisors (6353923).

100085426621 is an equidigital number, since it uses as much as digits as its factorization.

100085426621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6353922.

The product of its (nonzero) digits is 23040, while the sum is 35.

The spelling of 100085426621 in words is "one hundred billion, eighty-five million, four hundred twenty-six thousand, six hundred twenty-one".