100547981419 has 4 divisors (see below), whose sum is σ = 100548616896. Its totient is φ = 100547345944.

The previous prime is 100547981411. The next prime is 100547981467. The reversal of 100547981419 is 914189745001.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 100547981419 - 2³ = 100547981411 is a prime.

It is a super-2 number, since 2×100547981419² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100547981411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128517 + ... + 466489.

It is an arithmetic number, because the mean of its divisors is an integer number (25137154224).

Almost surely, 2^100547981419 is an apocalyptic number.

100547981419 is a deficient number, since it is larger than the sum of its proper divisors (635477).

100547981419 is an equidigital number, since it uses as much as digits as its factorization.

100547981419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635476.

The product of its (nonzero) digits is 362880, while the sum is 49.

The spelling of 100547981419 in words is "one hundred billion, five hundred forty-seven million, nine hundred eighty-one thousand, four hundred nineteen".