3157948538 has 8 divisors (see below), whose sum is σ = 4737192660. Its totient is φ = 1578884320.

The previous prime is 3157948513. The next prime is 3157948571. The reversal of 3157948538 is 8358497513.

It can be written as a sum of positive squares in 2 ways, for example, as 2894762809 + 263185729 = 53803^2 + 16223^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 3157948538.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14798 + ... + 80838.

Almost surely, 2^3157948538 is an apocalyptic number.

3157948538 is a deficient number, since it is larger than the sum of its proper divisors (1579244122).

3157948538 is a wasteful number, since it uses less digits than its factorization.

3157948538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89952.

The product of its digits is 3628800, while the sum is 53.

The square root of 3157948538 is about 56195.6273921735. The cubic root of 3157948538 is about 1467.1291615693.

The spelling of 3157948538 in words is "three billion, one hundred fifty-seven million, nine hundred forty-eight thousand, five hundred thirty-eight".