7164428261 has 4 divisors (see below), whose sum is σ = 7165960224. Its totient is φ = 7162896300.

The previous prime is 7164428209. The next prime is 7164428291. The reversal of 7164428261 is 1628244617.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1628244617 = 8291 ⋅196387.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7164428261 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7164428291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 758945 + ... + 768326.

It is an arithmetic number, because the mean of its divisors is an integer number (1791490056).

Almost surely, 2^7164428261 is an apocalyptic number.

It is an amenable number.

7164428261 is a deficient number, since it is larger than the sum of its proper divisors (1531963).

7164428261 is a wasteful number, since it uses less digits than its factorization.

7164428261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531962.

The product of its digits is 129024, while the sum is 41.

The square root of 7164428261 is about 84642.9457249687. The cubic root of 7164428261 is about 1927.7935051891.

The spelling of 7164428261 in words is "seven billion, one hundred sixty-four million, four hundred twenty-eight thousand, two hundred sixty-one".