104718521019 has 8 divisors (see below), whose sum is σ = 159571079680. Its totient is φ = 59839154856.

The previous prime is 104718520969. The next prime is 104718521027. The reversal of 104718521019 is 910125817401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 104718521019 - 2¹³ = 104718512827 is a prime.

It is a super-2 number, since 2×104718521019² (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 (104718521059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2493298099 + ... + 2493298140.

It is an arithmetic number, because the mean of its divisors is an integer number (19946384960).

Almost surely, 2^104718521019 is an apocalyptic number.

104718521019 is a deficient number, since it is larger than the sum of its proper divisors (54852558661).

104718521019 is an equidigital number, since it uses as much as digits as its factorization.

104718521019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4986596249.

The product of its (nonzero) digits is 20160, while the sum is 39.

The spelling of 104718521019 in words is "one hundred four billion, seven hundred eighteen million, five hundred twenty-one thousand, nineteen".