1538496771 has 16 divisors (see below), whose sum is σ = 2348020224. Its totient is φ = 877774464.

The previous prime is 1538496769. The next prime is 1538496781. The reversal of 1538496771 is 1776948351.

It is a happy number.

1538496771 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1538496771 - 2¹ = 1538496769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1538496721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43030 + ... + 70203.

It is an arithmetic number, because the mean of its divisors is an integer number (146751264).

Almost surely, 2^1538496771 is an apocalyptic number.

1538496771 is a deficient number, since it is larger than the sum of its proper divisors (809523453).

1538496771 is a wasteful number, since it uses less digits than its factorization.

1538496771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113890.

The product of its digits is 1270080, while the sum is 51.

The square root of 1538496771 is about 39223.6761535683. The cubic root of 1538496771 is about 1154.4244856792.

The spelling of 1538496771 in words is "one billion, five hundred thirty-eight million, four hundred ninety-six thousand, seven hundred seventy-one".