142979631469 has 8 divisors (see below), whose sum is σ = 151557127488. Its totient is φ = 134420683200.

The previous prime is 142979631463. The next prime is 142979631479. The reversal of 142979631469 is 964136979241.

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

It is a cyclic number.

It is not a de Polignac number, because 142979631469 - 2³ = 142979631461 is a prime.

It is a super-2 number, since 2×142979631469² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142979631461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4621057 + ... + 4651894.

It is an arithmetic number, because the mean of its divisors is an integer number (18944640936).

Almost surely, 2^142979631469 is an apocalyptic number.

It is an amenable number.

142979631469 is a deficient number, since it is larger than the sum of its proper divisors (8577496019).

142979631469 is an equidigital number, since it uses as much as digits as its factorization.

142979631469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9273875.

The product of its digits is 17635968, while the sum is 61.

The spelling of 142979631469 in words is "one hundred forty-two billion, nine hundred seventy-nine million, six hundred thirty-one thousand, four hundred sixty-nine".