2038725691 has 4 divisors (see below), whose sum is σ = 2050115400. Its totient is φ = 2027335984.

The previous prime is 2038725679. The next prime is 2038725739. The reversal of 2038725691 is 1965278302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2038725691 - 2⁹ = 2038725179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2038725191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5694586 + ... + 5694943.

It is an arithmetic number, because the mean of its divisors is an integer number (512528850).

Almost surely, 2^2038725691 is an apocalyptic number.

2038725691 is a deficient number, since it is larger than the sum of its proper divisors (11389709).

2038725691 is a wasteful number, since it uses less digits than its factorization.

2038725691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11389708.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 2038725691 is about 45152.2501211180. The cubic root of 2038725691 is about 1268.0010073648.

The spelling of 2038725691 in words is "two billion, thirty-eight million, seven hundred twenty-five thousand, six hundred ninety-one".