38195780349 has 4 divisors (see below), whose sum is σ = 50927707136. Its totient is φ = 25463853564.

The previous prime is 38195780341. The next prime is 38195780377. The reversal of 38195780349 is 94308759183.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94308759183 = 3 ⋅31436253061.

It is not a de Polignac number, because 38195780349 - 2³ = 38195780341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38195780341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6365963389 + ... + 6365963394.

It is an arithmetic number, because the mean of its divisors is an integer number (12731926784).

Almost surely, 2^38195780349 is an apocalyptic number.

It is an amenable number.

38195780349 is a deficient number, since it is larger than the sum of its proper divisors (12731926787).

38195780349 is a wasteful number, since it uses less digits than its factorization.

38195780349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12731926786.

The product of its (nonzero) digits is 6531840, while the sum is 57.

The spelling of 38195780349 in words is "thirty-eight billion, one hundred ninety-five million, seven hundred eighty thousand, three hundred forty-nine".