100919108426 has 4 divisors (see below), whose sum is σ = 151378662642. Its totient is φ = 50459554212.

The previous prime is 100919108419. The next prime is 100919108483. The reversal of 100919108426 is 624801919001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 624801919001 = 13 ⋅48061686077.

It can be written as a sum of positive squares in only one way, i.e., 67574522401 + 33344586025 = 259951^2 + 182605^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25229777105 + ... + 25229777108.

Almost surely, 2^100919108426 is an apocalyptic number.

100919108426 is a deficient number, since it is larger than the sum of its proper divisors (50459554216).

100919108426 is an equidigital number, since it uses as much as digits as its factorization.

100919108426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50459554215.

The product of its (nonzero) digits is 31104, while the sum is 41.

The spelling of 100919108426 in words is "one hundred billion, nine hundred nineteen million, one hundred eight thousand, four hundred twenty-six".