9749401769 has 4 divisors (see below), whose sum is σ = 9750437844. Its totient is φ = 9748365696.

The previous prime is 9749401741. The next prime is 9749401819. The reversal of 9749401769 is 9671049479.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3090025744 + 6659376025 = 55588^2 + 81605^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9749401769 is a prime.

It is a super-2 number, since 2×9749401769² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9749401729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503792 + ... + 522785.

It is an arithmetic number, because the mean of its divisors is an integer number (2437609461).

Almost surely, 2^9749401769 is an apocalyptic number.

It is an amenable number.

9749401769 is a deficient number, since it is larger than the sum of its proper divisors (1036075).

9749401769 is a wasteful number, since it uses less digits than its factorization.

9749401769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036074.

The product of its (nonzero) digits is 3429216, while the sum is 56.

The square root of 9749401769 is about 98739.0589837679. The cubic root of 9749401769 is about 2136.2856470173.

The spelling of 9749401769 in words is "nine billion, seven hundred forty-nine million, four hundred one thousand, seven hundred sixty-nine".