7292749861 has 2 divisors, whose sum is σ = 7292749862. Its totient is φ = 7292749860.

The previous prime is 7292749847. The next prime is 7292749883. The reversal of 7292749861 is 1689472927.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5122121761 + 2170628100 = 71569^2 + 46590^2 .

It is a cyclic number.

It is not a de Polignac number, because 7292749861 - 2¹⁵ = 7292717093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7292749361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3646374930 + 3646374931.

It is an arithmetic number, because the mean of its divisors is an integer number (3646374931).

Almost surely, 2^7292749861 is an apocalyptic number.

It is an amenable number.

7292749861 is a deficient number, since it is larger than the sum of its proper divisors (1).

7292749861 is an equidigital number, since it uses as much as digits as its factorization.

7292749861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3048192, while the sum is 55.

The square root of 7292749861 is about 85397.5986840379. The cubic root of 7292749861 is about 1939.2349926819.

The spelling of 7292749861 in words is "seven billion, two hundred ninety-two million, seven hundred forty-nine thousand, eight hundred sixty-one".