7723071145 has 16 divisors (see below), whose sum is σ = 9410421888. Its totient is φ = 6083992960.

The previous prime is 7723071107. The next prime is 7723071247. The reversal of 7723071145 is 5411703277.

It is a happy number.

It is not a de Polignac number, because 7723071145 - 2⁹ = 7723070633 is a prime.

It is a super-2 number, since 2×7723071145² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 46125 + ... + 132565.

It is an arithmetic number, because the mean of its divisors is an integer number (588151368).

Almost surely, 2^7723071145 is an apocalyptic number.

It is an amenable number.

7723071145 is a deficient number, since it is larger than the sum of its proper divisors (1687350743).

7723071145 is a wasteful number, since it uses less digits than its factorization.

7723071145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86720.

The product of its (nonzero) digits is 41160, while the sum is 37.

The square root of 7723071145 is about 87881.0055984796. The cubic root of 7723071145 is about 1976.6510699149.

The spelling of 7723071145 in words is "seven billion, seven hundred twenty-three million, seventy-one thousand, one hundred forty-five".