4157974493 has 4 divisors (see below), whose sum is σ = 4270352220. Its totient is φ = 4045596768.

The previous prime is 4157974489. The next prime is 4157974501. The reversal of 4157974493 is 3944797514.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4028060089 + 129914404 = 63467^2 + 11398^2 .

It is a cyclic number.

It is not a de Polignac number, because 4157974493 - 2² = 4157974489 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4157974433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56188808 + ... + 56188881.

It is an arithmetic number, because the mean of its divisors is an integer number (1067588055).

Almost surely, 2^4157974493 is an apocalyptic number.

It is an amenable number.

4157974493 is a deficient number, since it is larger than the sum of its proper divisors (112377727).

4157974493 is a wasteful number, since it uses less digits than its factorization.

4157974493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112377726.

The product of its digits is 3810240, while the sum is 53.

The square root of 4157974493 is about 64482.3579981378. The cubic root of 4157974493 is about 1608.0292351567.

The spelling of 4157974493 in words is "four billion, one hundred fifty-seven million, nine hundred seventy-four thousand, four hundred ninety-three".