37849563849 has 4 divisors (see below), whose sum is σ = 50466085136. Its totient is φ = 25233042564.

The previous prime is 37849563841. The next prime is 37849563883. The reversal of 37849563849 is 94836594873.

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 not a de Polignac number, because 37849563849 - 2³ = 37849563841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 37849563849.

It is not an unprimeable number, because it can be changed into a prime (37849563841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6308260639 + ... + 6308260644.

It is an arithmetic number, because the mean of its divisors is an integer number (12616521284).

Almost surely, 2^37849563849 is an apocalyptic number.

It is an amenable number.

37849563849 is a deficient number, since it is larger than the sum of its proper divisors (12616521287).

37849563849 is a wasteful number, since it uses less digits than its factorization.

37849563849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12616521286.

The product of its digits is 156764160, while the sum is 66.

The spelling of 37849563849 in words is "thirty-seven billion, eight hundred forty-nine million, five hundred sixty-three thousand, eight hundred forty-nine".