1355997984037 has 2 divisors, whose sum is σ = 1355997984038. Its totient is φ = 1355997984036.

The previous prime is 1355997983929. The next prime is 1355997984041. The reversal of 1355997984037 is 7304897995531.

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., 1311302104641 + 44695879396 = 1145121^2 + 211414^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1355997984037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1355997984067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677998992018 + 677998992019.

It is an arithmetic number, because the mean of its divisors is an integer number (677998992019).

Almost surely, 2^{1355997984037} is an apocalyptic number.

It is an amenable number.

1355997984037 is a deficient number, since it is larger than the sum of its proper divisors (1).

1355997984037 is an equidigital number, since it uses as much as digits as its factorization.

1355997984037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 257191200, while the sum is 70.

The spelling of 1355997984037 in words is "one trillion, three hundred fifty-five billion, nine hundred ninety-seven million, nine hundred eighty-four thousand, thirty-seven".