7697316145 has 4 divisors (see below), whose sum is σ = 9236779380. Its totient is φ = 6157852912.

The previous prime is 7697316139. The next prime is 7697316163. The reversal of 7697316145 is 5416137967.

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 5428889761 + 2268426384 = 73681^2 + 47628^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7697316145 is a prime.

It is a super-2 number, since 2×7697316145² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 769731610 + ... + 769731619.

It is an arithmetic number, because the mean of its divisors is an integer number (2309194845).

Almost surely, 2^7697316145 is an apocalyptic number.

It is an amenable number.

7697316145 is a deficient number, since it is larger than the sum of its proper divisors (1539463235).

7697316145 is a wasteful number, since it uses less digits than its factorization.

7697316145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539463234.

The product of its digits is 952560, while the sum is 49.

The square root of 7697316145 is about 87734.3498579661. The cubic root of 7697316145 is about 1974.4513688416.

The spelling of 7697316145 in words is "seven billion, six hundred ninety-seven million, three hundred sixteen thousand, one hundred forty-five".