2137667746 has 4 divisors (see below), whose sum is σ = 3206501622. Its totient is φ = 1068833872.

The previous prime is 2137667731. The next prime is 2137667747. The reversal of 2137667746 is 6477667312.

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

It can be written as a sum of positive squares in only one way, i.e., 1760725521 + 376942225 = 41961^2 + 19415^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 2137667746.

It is not an unprimeable number, because it can be changed into a prime (2137667747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 534416935 + ... + 534416938.

Almost surely, 2^2137667746 is an apocalyptic number.

2137667746 is a deficient number, since it is larger than the sum of its proper divisors (1068833876).

2137667746 is a wasteful number, since it uses less digits than its factorization.

2137667746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068833875.

The product of its digits is 1778112, while the sum is 49.

The square root of 2137667746 is about 46234.9191196438. The cubic root of 2137667746 is about 1288.1904291469.

The spelling of 2137667746 in words is "two billion, one hundred thirty-seven million, six hundred sixty-seven thousand, seven hundred forty-six".