142169722378 has 16 divisors (see below), whose sum is σ = 214260732000. Its totient is φ = 70749695952.

The previous prime is 142169722369. The next prime is 142169722403. The reversal of 142169722378 is 873227961241.

It is a super-2 number, since 2×142169722378² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1293253 + ... + 1398871.

It is an arithmetic number, because the mean of its divisors is an integer number (13391295750).

Almost surely, 2^142169722378 is an apocalyptic number.

142169722378 is a deficient number, since it is larger than the sum of its proper divisors (72091009622).

142169722378 is a wasteful number, since it uses less digits than its factorization.

142169722378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108789.

The product of its digits is 2032128, while the sum is 52.

The spelling of 142169722378 in words is "one hundred forty-two billion, one hundred sixty-nine million, seven hundred twenty-two thousand, three hundred seventy-eight".