7423556742149 has 2 divisors, whose sum is σ = 7423556742150. Its totient is φ = 7423556742148.

The previous prime is 7423556742127. The next prime is 7423556742157. The reversal of 7423556742149 is 9412476553247.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7263402304900 + 160154437249 = 2695070^2 + 400193^2 .

It is an emirp because it is prime and its reverse (9412476553247) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7423556742149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7423556742109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3711778371074 + 3711778371075.

It is an arithmetic number, because the mean of its divisors is an integer number (3711778371075).

Almost surely, 2^{7423556742149} is an apocalyptic number.

It is an amenable number.

7423556742149 is a deficient number, since it is larger than the sum of its proper divisors (1).

7423556742149 is an equidigital number, since it uses as much as digits as its factorization.

7423556742149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50803200, while the sum is 59.

The spelling of 7423556742149 in words is "seven trillion, four hundred twenty-three billion, five hundred fifty-six million, seven hundred forty-two thousand, one hundred forty-nine".