7129535074 has 12 divisors (see below), whose sum is σ = 10774475442. Its totient is φ = 3538053600.

The previous prime is 7129535047. The next prime is 7129535081. The reversal of 7129535074 is 4705359217.

It can be written as a sum of positive squares in 3 ways, for example, as 1384956225 + 5744578849 = 37215^2 + 75793^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7129535074.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1395124 + ... + 1400224.

Almost surely, 2^7129535074 is an apocalyptic number.

7129535074 is a deficient number, since it is larger than the sum of its proper divisors (3644940368).

7129535074 is an frugal number, since it uses more digits than its factorization.

7129535074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10341 (or 5240 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 43.

The square root of 7129535074 is about 84436.5742673162. The cubic root of 7129535074 is about 1924.6587419126.

The spelling of 7129535074 in words is "seven billion, one hundred twenty-nine million, five hundred thirty-five thousand, seventy-four".