3157493798 has 8 divisors (see below), whose sum is σ = 4743918792. Its totient is φ = 1576187536.

The previous prime is 3157493789. The next prime is 3157493819. The reversal of 3157493798 is 8973947513.

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

It is a congruent number.

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, 1278140 + ... + 1280607.

It is an arithmetic number, because the mean of its divisors is an integer number (592989849).

Almost surely, 2^3157493798 is an apocalyptic number.

3157493798 is a deficient number, since it is larger than the sum of its proper divisors (1586424994).

3157493798 is a wasteful number, since it uses less digits than its factorization.

3157493798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2559366.

The product of its digits is 5715360, while the sum is 56.

The square root of 3157493798 is about 56191.5812021694. The cubic root of 3157493798 is about 1467.0587366998.

The spelling of 3157493798 in words is "three billion, one hundred fifty-seven million, four hundred ninety-three thousand, seven hundred ninety-eight".