7149792261 has 16 divisors (see below), whose sum is σ = 9560646144. Its totient is φ = 4752755904.

The previous prime is 7149792193. The next prime is 7149792271. The reversal of 7149792261 is 1622979417.

It is a de Polignac number, because none of the positive numbers 2^k-7149792261 is a prime.

It is a super-2 number, since 2×7149792261² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7149792261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7149792271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1730380 + ... + 1734506.

It is an arithmetic number, because the mean of its divisors is an integer number (597540384).

Almost surely, 2^7149792261 is an apocalyptic number.

It is an amenable number.

7149792261 is a deficient number, since it is larger than the sum of its proper divisors (2410853883).

7149792261 is a wasteful number, since it uses less digits than its factorization.

7149792261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5660.

The product of its digits is 381024, while the sum is 48.

The square root of 7149792261 is about 84556.4442310579. Note that the first 3 decimals coincide. The cubic root of 7149792261 is about 1926.4798660135.

The spelling of 7149792261 in words is "seven billion, one hundred forty-nine million, seven hundred ninety-two thousand, two hundred sixty-one".