100085428621 has 2 divisors, whose sum is σ = 100085428622. Its totient is φ = 100085428620.

The previous prime is 100085428577. The next prime is 100085428643. The reversal of 100085428621 is 126824580001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99817451721 + 267976900 = 315939^2 + 16370^2 .

It is a cyclic number.

It is not a de Polignac number, because 100085428621 - 2⁷ = 100085428493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100085428021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50042714310 + 50042714311.

It is an arithmetic number, because the mean of its divisors is an integer number (50042714311).

Almost surely, 2^100085428621 is an apocalyptic number.

It is an amenable number.

100085428621 is a deficient number, since it is larger than the sum of its proper divisors (1).

100085428621 is an equidigital number, since it uses as much as digits as its factorization.

100085428621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30720, while the sum is 37.

The spelling of 100085428621 in words is "one hundred billion, eighty-five million, four hundred twenty-eight thousand, six hundred twenty-one".