735843142969 has 9 divisors (see below), whose sum is σ = 808829694309. Its totient is φ = 668939733660.

The previous prime is 735843142963. The next prime is 735843142997. The reversal of 735843142969 is 969241348537.

It is a happy number.

The square root of 735843142969 is 857813.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 735843142969 - 2³ = 735843142961 is a prime.

It is a super-2 number, since 2×735843142969² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (735843142961) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9396952 + ... + 9474934.

Almost surely, 2^735843142969 is an apocalyptic number.

735843142969 is the 857813-rd square number.

735843142969 is the 428907-th centered octagonal number.

It is an amenable number.

735843142969 is a deficient number, since it is larger than the sum of its proper divisors (72986551340).

735843142969 is an frugal number, since it uses more digits than its factorization.

735843142969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155988 (or 77994 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 61.

The spelling of 735843142969 in words is "seven hundred thirty-five billion, eight hundred forty-three million, one hundred forty-two thousand, nine hundred sixty-nine".