1969146147869 has 8 divisors (see below), whose sum is σ = 1970693635680. Its totient is φ = 1967598838800.

The previous prime is 1969146147833. The next prime is 1969146147979. The reversal of 1969146147869 is 9687416419691.

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 1969146147869 - 2²⁸ = 1968877712413 is a prime.

It is a super-2 number, since 2×1969146147869² (a number of 25 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 (1969146147569) 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, 29546354 + ... + 29612924.

It is an arithmetic number, because the mean of its divisors is an integer number (246336704460).

Almost surely, 2^{1969146147869} is an apocalyptic number.

It is an amenable number.

1969146147869 is a deficient number, since it is larger than the sum of its proper divisors (1547487811).

1969146147869 is a wasteful number, since it uses less digits than its factorization.

1969146147869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89371.

The product of its digits is 141087744, while the sum is 71.

The spelling of 1969146147869 in words is "one trillion, nine hundred sixty-nine billion, one hundred forty-six million, one hundred forty-seven thousand, eight hundred sixty-nine".