2473720752949 has 2 divisors, whose sum is σ = 2473720752950. Its totient is φ = 2473720752948.

The previous prime is 2473720752947. The next prime is 2473720753043. The reversal of 2473720752949 is 9492570273742.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1957780228849 + 515940524100 = 1399207^2 + 718290^2 .

It is a cyclic number.

It is not a de Polignac number, because 2473720752949 - 2¹ = 2473720752947 is a prime.

It is a super-2 number, since 2×2473720752949² (a number of 26 digits) contains 22 as substring.

Together with 2473720752947, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2473720752947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1236860376474 + 1236860376475.

It is an arithmetic number, because the mean of its divisors is an integer number (1236860376475).

Almost surely, 2^{2473720752949} is an apocalyptic number.

It is an amenable number.

2473720752949 is a deficient number, since it is larger than the sum of its proper divisors (1).

2473720752949 is an equidigital number, since it uses as much as digits as its factorization.

2473720752949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 53343360, while the sum is 61.

The spelling of 2473720752949 in words is "two trillion, four hundred seventy-three billion, seven hundred twenty million, seven hundred fifty-two thousand, nine hundred forty-nine".