2602491973 has 2 divisors, whose sum is σ = 2602491974. Its totient is φ = 2602491972.

The previous prime is 2602491907. The next prime is 2602491989. The reversal of 2602491973 is 3791942062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2601714049 + 777924 = 51007^2 + 882^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2602491973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2602491173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1301245986 + 1301245987.

It is an arithmetic number, because the mean of its divisors is an integer number (1301245987).

Almost surely, 2^2602491973 is an apocalyptic number.

It is an amenable number.

2602491973 is a deficient number, since it is larger than the sum of its proper divisors (1).

2602491973 is an equidigital number, since it uses as much as digits as its factorization.

2602491973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 2602491973 is about 51014.6250892820. The cubic root of 2602491973 is about 1375.5080389098.

The spelling of 2602491973 in words is "two billion, six hundred two million, four hundred ninety-one thousand, nine hundred seventy-three".