100626504389 has 2 divisors, whose sum is σ = 100626504390. Its totient is φ = 100626504388.

The previous prime is 100626504347. The next prime is 100626504449. The reversal of 100626504389 is 983405626001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80343902500 + 20282601889 = 283450^2 + 142417^2 .

It is an emirp because it is prime and its reverse (983405626001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100626504389 - 2³⁶ = 31907027653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100626504989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50313252194 + 50313252195.

It is an arithmetic number, because the mean of its divisors is an integer number (50313252195).

Almost surely, 2^100626504389 is an apocalyptic number.

It is an amenable number.

100626504389 is a deficient number, since it is larger than the sum of its proper divisors (1).

100626504389 is an equidigital number, since it uses as much as digits as its factorization.

100626504389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 100626504389 in words is "one hundred billion, six hundred twenty-six million, five hundred four thousand, three hundred eighty-nine".