3157820674 has 8 divisors (see below), whose sum is σ = 4736977020. Its totient is φ = 1578828336.

The previous prime is 3157820671. The next prime is 3157820683. The reversal of 3157820674 is 4760287513.

It can be written as a sum of positive squares in 2 ways, for example, as 2987387649 + 170433025 = 54657^2 + 13055^2 .

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 3157820674.

It is not an unprimeable number, because it can be changed into a prime (3157820671) 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, 36232 + ... + 87340.

Almost surely, 2^3157820674 is an apocalyptic number.

3157820674 is a deficient number, since it is larger than the sum of its proper divisors (1579156346).

3157820674 is a wasteful number, since it uses less digits than its factorization.

3157820674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82004.

The product of its (nonzero) digits is 282240, while the sum is 43.

The square root of 3157820674 is about 56194.4897120705. The cubic root of 3157820674 is about 1467.1093601557.

The spelling of 3157820674 in words is "three billion, one hundred fifty-seven million, eight hundred twenty thousand, six hundred seventy-four".