37739668645 has 8 divisors (see below), whose sum is σ = 51757259904. Its totient is φ = 25878629904.

The previous prime is 37739668639. The next prime is 37739668661. The reversal of 37739668645 is 54686693773.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-37739668645 is a prime.

It is a super-2 number, since 2×37739668645² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 539138089 + ... + 539138158.

It is an arithmetic number, because the mean of its divisors is an integer number (6469657488).

Almost surely, 2^37739668645 is an apocalyptic number.

37739668645 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

37739668645 is a deficient number, since it is larger than the sum of its proper divisors (14017591259).

37739668645 is a wasteful number, since it uses less digits than its factorization.

37739668645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078276259.

The product of its digits is 137168640, while the sum is 64.

The spelling of 37739668645 in words is "thirty-seven billion, seven hundred thirty-nine million, six hundred sixty-eight thousand, six hundred forty-five".