637006149249 has 4 divisors (see below), whose sum is σ = 849341532336. Its totient is φ = 424670766164.

The previous prime is 637006149161. The next prime is 637006149253. The reversal of 637006149249 is 942941600736.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 637006149249 - 2¹⁷ = 637006018177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (637006149649) 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, 106167691539 + ... + 106167691544.

It is an arithmetic number, because the mean of its divisors is an integer number (212335383084).

Almost surely, 2^637006149249 is an apocalyptic number.

It is an amenable number.

637006149249 is a deficient number, since it is larger than the sum of its proper divisors (212335383087).

637006149249 is a wasteful number, since it uses less digits than its factorization.

637006149249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212335383086.

The product of its (nonzero) digits is 1959552, while the sum is 51.

The spelling of 637006149249 in words is "six hundred thirty-seven billion, six million, one hundred forty-nine thousand, two hundred forty-nine".