7494272129 has 16 divisors (see below), whose sum is σ = 7981545600. Its totient is φ = 7012287744.

The previous prime is 7494272119. The next prime is 7494272143. The reversal of 7494272129 is 9212724947.

It is a cyclic number.

It is not a de Polignac number, because 7494272129 - 2⁴ = 7494272113 is a prime.

It is a super-2 number, since 2×7494272129² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7494272119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2256332 + ... + 2259650.

It is an arithmetic number, because the mean of its divisors is an integer number (498846600).

Almost surely, 2^7494272129 is an apocalyptic number.

It is an amenable number.

7494272129 is a deficient number, since it is larger than the sum of its proper divisors (487273471).

7494272129 is a wasteful number, since it uses less digits than its factorization.

7494272129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4072.

The product of its digits is 508032, while the sum is 47.

The square root of 7494272129 is about 86569.4641833944. The cubic root of 7494272129 is about 1956.9353857457.

The spelling of 7494272129 in words is "seven billion, four hundred ninety-four million, two hundred seventy-two thousand, one hundred twenty-nine".