1418521217979 has 16 divisors (see below), whose sum is σ = 2002677529248. Its totient is φ = 890026156032.

The previous prime is 1418521217963. The next prime is 1418521218043. The reversal of 1418521217979 is 9797121258141.

It is not a de Polignac number, because 1418521217979 - 2⁴ = 1418521217963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1418521217579) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1403659 + ... + 2192555.

It is an arithmetic number, because the mean of its divisors is an integer number (125167345578).

Almost surely, 2^{1418521217979} is an apocalyptic number.

1418521217979 is a deficient number, since it is larger than the sum of its proper divisors (584156311269).

1418521217979 is a wasteful number, since it uses less digits than its factorization.

1418521217979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824174.

The product of its digits is 2540160, while the sum is 57.

The spelling of 1418521217979 in words is "one trillion, four hundred eighteen billion, five hundred twenty-one million, two hundred seventeen thousand, nine hundred seventy-nine".