1069640761 has 8 divisors (see below), whose sum is σ = 1223095104. Its totient is φ = 916348560.

The previous prime is 1069640713. The next prime is 1069640791. The reversal of 1069640761 is 1670469601.

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 1069640761 - 2¹⁷ = 1069509689 is a prime.

It is a super-2 number, since 2×1069640761² = 2288262715185318242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1069640791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26050 + ... + 53083.

It is an arithmetic number, because the mean of its divisors is an integer number (152886888).

Almost surely, 2^1069640761 is an apocalyptic number.

It is an amenable number.

1069640761 is a deficient number, since it is larger than the sum of its proper divisors (153454343).

1069640761 is an equidigital number, since it uses as much as digits as its factorization.

1069640761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81071.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 1069640761 is about 32705.3628782804. The cubic root of 1069640761 is about 1022.6946438712.

The spelling of 1069640761 in words is "one billion, sixty-nine million, six hundred forty thousand, seven hundred sixty-one".