1497849457997 has 2 divisors, whose sum is σ = 1497849457998. Its totient is φ = 1497849457996.

The previous prime is 1497849457927. The next prime is 1497849458003. The reversal of 1497849457997 is 7997549487941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1355487376516 + 142362081481 = 1164254^2 + 377309^2 .

It is a cyclic number.

It is not a de Polignac number, because 1497849457997 - 2¹⁰ = 1497849456973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1497849457927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 748924728998 + 748924728999.

It is an arithmetic number, because the mean of its divisors is an integer number (748924728999).

Almost surely, 2^{1497849457997} is an apocalyptic number.

It is an amenable number.

1497849457997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1497849457997 is an equidigital number, since it uses as much as digits as its factorization.

1497849457997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5761082880, while the sum is 83.

The spelling of 1497849457997 in words is "one trillion, four hundred ninety-seven billion, eight hundred forty-nine million, four hundred fifty-seven thousand, nine hundred ninety-seven".