1907755493381 has 2 divisors, whose sum is σ = 1907755493382. Its totient is φ = 1907755493380.

The previous prime is 1907755493333. The next prime is 1907755493383. The reversal of 1907755493381 is 1833945577091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1797232490881 + 110523002500 = 1340609^2 + 332450^2 .

It is an emirp because it is prime and its reverse (1833945577091) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1907755493381 is a prime.

It is a super-2 number, since 2×1907755493381² (a number of 25 digits) contains 22 as substring.

Together with 1907755493383, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1907755493383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 953877746690 + 953877746691.

It is an arithmetic number, because the mean of its divisors is an integer number (953877746691).

Almost surely, 2^{1907755493381} is an apocalyptic number.

It is an amenable number.

1907755493381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1907755493381 is an equidigital number, since it uses as much as digits as its factorization.

1907755493381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28576800, while the sum is 62.

The spelling of 1907755493381 in words is "one trillion, nine hundred seven billion, seven hundred fifty-five million, four hundred ninety-three thousand, three hundred eighty-one".