7489149157439 has 2 divisors, whose sum is σ = 7489149157440. Its totient is φ = 7489149157438.

The previous prime is 7489149157403. The next prime is 7489149157471. The reversal of 7489149157439 is 9347519419847.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7489149157439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7489149153439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3744574578719 + 3744574578720.

It is an arithmetic number, because the mean of its divisors is an integer number (3744574578720).

Almost surely, 2^{7489149157439} is an apocalyptic number.

7489149157439 is a deficient number, since it is larger than the sum of its proper divisors (1).

7489149157439 is an equidigital number, since it uses as much as digits as its factorization.

7489149157439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 274337280, while the sum is 71.

The spelling of 7489149157439 in words is "seven trillion, four hundred eighty-nine billion, one hundred forty-nine million, one hundred fifty-seven thousand, four hundred thirty-nine".