1138756833437 has 2 divisors, whose sum is σ = 1138756833438. Its totient is φ = 1138756833436.

The previous prime is 1138756833427. The next prime is 1138756833443. The reversal of 1138756833437 is 7343386578311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1137356127961 + 1400705476 = 1066469^2 + 37426^2 .

It is a cyclic number.

It is not a de Polignac number, because 1138756833437 - 2⁶ = 1138756833373 is a prime.

It is a super-2 number, since 2×1138756833437² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1138756833427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 569378416718 + 569378416719.

It is an arithmetic number, because the mean of its divisors is an integer number (569378416719).

Almost surely, 2^{1138756833437} is an apocalyptic number.

It is an amenable number.

1138756833437 is a deficient number, since it is larger than the sum of its proper divisors (1).

1138756833437 is an equidigital number, since it uses as much as digits as its factorization.

1138756833437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30481920, while the sum is 59.

The spelling of 1138756833437 in words is "one trillion, one hundred thirty-eight billion, seven hundred fifty-six million, eight hundred thirty-three thousand, four hundred thirty-seven".