7916194729 has 9 divisors (see below), whose sum is σ = 7974722469. Its totient is φ = 7858095360.

The previous prime is 7916194711. The next prime is 7916194831. The reversal of 7916194729 is 9274916197.

The square root of 7916194729 is 88973.

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

It can be written as a sum of positive squares in 4 ways, for example, as 1524512025 + 6391682704 = 39045^2 + 79948^2 .

It is not a de Polignac number, because 7916194729 - 2²⁹ = 7379323817 is a prime.

It is a super-2 number, since 2×7916194729² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7916194729.

It is not an unprimeable number, because it can be changed into a prime (7916194129) 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, 17171559 + ... + 17172019.

Almost surely, 2^7916194729 is an apocalyptic number.

7916194729 is the 88973-rd square number.

7916194729 is the 44487-th centered octagonal number.

It is an amenable number.

7916194729 is a deficient number, since it is larger than the sum of its proper divisors (58527740).

7916194729 is an frugal number, since it uses more digits than its factorization.

7916194729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308 (or 654 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 55.

The cubic root of 7916194729 is about 1992.9916979530.

The spelling of 7916194729 in words is "seven billion, nine hundred sixteen million, one hundred ninety-four thousand, seven hundred twenty-nine".