1964268769 has 8 divisors (see below), whose sum is σ = 1998443520. Its totient is φ = 1930123536.

The previous prime is 1964268731. The next prime is 1964268829. The reversal of 1964268769 is 9678624691.

It is a happy number.

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 1964268769 - 2¹³ = 1964260577 is a prime.

It is a super-2 number, since 2×1964268769² = 7716703593737550722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1964268169) 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, 159072 + ... + 170974.

It is an arithmetic number, because the mean of its divisors is an integer number (249805440).

Almost surely, 2^1964268769 is an apocalyptic number.

It is an amenable number.

1964268769 is a deficient number, since it is larger than the sum of its proper divisors (34174751).

1964268769 is a wasteful number, since it uses less digits than its factorization.

1964268769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14759.

The product of its digits is 7838208, while the sum is 58.

The square root of 1964268769 is about 44320.0718523786. The cubic root of 1964268769 is about 1252.3728302778.

The spelling of 1964268769 in words is "one billion, nine hundred sixty-four million, two hundred sixty-eight thousand, seven hundred sixty-nine".