1423277331965 has 16 divisors (see below), whose sum is σ = 1711907049600. Its totient is φ = 1135974864960.

The previous prime is 1423277331937. The next prime is 1423277331979. The reversal of 1423277331965 is 5691337723241.

It is a happy number.

It is not a de Polignac number, because 1423277331965 - 2³⁰ = 1422203590141 is a prime.

It is a super-2 number, since 2×1423277331965² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4430147 + ... + 4740543.

It is an arithmetic number, because the mean of its divisors is an integer number (106994190600).

Almost surely, 2^{1423277331965} is an apocalyptic number.

It is an amenable number.

1423277331965 is a deficient number, since it is larger than the sum of its proper divisors (288629717635).

1423277331965 is a wasteful number, since it uses less digits than its factorization.

1423277331965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312532.

The product of its digits is 5715360, while the sum is 53.

The spelling of 1423277331965 in words is "one trillion, four hundred twenty-three billion, two hundred seventy-seven million, three hundred thirty-one thousand, nine hundred sixty-five".