4079972137 has 4 divisors (see below), whose sum is σ = 4319970516. Its totient is φ = 3839973760.

The previous prime is 4079972131. The next prime is 4079972147. The reversal of 4079972137 is 7312799704.

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 1987733056 + 2092239081 = 44584^2 + 45741^2 .

It is a cyclic number.

It is not a de Polignac number, because 4079972137 - 2⁷ = 4079972009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4079972131) 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, 119999164 + ... + 119999197.

It is an arithmetic number, because the mean of its divisors is an integer number (1079992629).

Almost surely, 2^4079972137 is an apocalyptic number.

It is an amenable number.

4079972137 is a deficient number, since it is larger than the sum of its proper divisors (239998379).

4079972137 is a wasteful number, since it uses less digits than its factorization.

4079972137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239998378.

The product of its (nonzero) digits is 666792, while the sum is 49.

The square root of 4079972137 is about 63874.6595842201. The cubic root of 4079972137 is about 1597.9103106090.

The spelling of 4079972137 in words is "four billion, seventy-nine million, nine hundred seventy-two thousand, one hundred thirty-seven".