38857113349 has 2 divisors, whose sum is σ = 38857113350. Its totient is φ = 38857113348.

The previous prime is 38857113341. The next prime is 38857113403. The reversal of 38857113349 is 94331175883.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31264605124 + 7592508225 = 176818^2 + 87135^2 .

It is a cyclic number.

It is not a de Polignac number, because 38857113349 - 2³ = 38857113341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38857113296 and 38857113305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38857113341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19428556674 + 19428556675.

It is an arithmetic number, because the mean of its divisors is an integer number (19428556675).

Almost surely, 2^38857113349 is an apocalyptic number.

It is an amenable number.

38857113349 is a deficient number, since it is larger than the sum of its proper divisors (1).

38857113349 is an equidigital number, since it uses as much as digits as its factorization.

38857113349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 52.

The spelling of 38857113349 in words is "thirty-eight billion, eight hundred fifty-seven million, one hundred thirteen thousand, three hundred forty-nine".