1838083103957 has 2 divisors, whose sum is σ = 1838083103958. Its totient is φ = 1838083103956.

The previous prime is 1838083103917. The next prime is 1838083104001. The reversal of 1838083103957 is 7593013808381.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1306446714001 + 531636389956 = 1142999^2 + 729134^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1838083103957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1838083103917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 919041551978 + 919041551979.

It is an arithmetic number, because the mean of its divisors is an integer number (919041551979).

Almost surely, 2^{1838083103957} is an apocalyptic number.

It is an amenable number.

1838083103957 is a deficient number, since it is larger than the sum of its proper divisors (1).

1838083103957 is an equidigital number, since it uses as much as digits as its factorization.

1838083103957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4354560, while the sum is 56.

The spelling of 1838083103957 in words is "one trillion, eight hundred thirty-eight billion, eighty-three million, one hundred three thousand, nine hundred fifty-seven".