37746042634981 has 4 divisors (see below), whose sum is σ = 37762901075200. Its totient is φ = 37729184194764.

The previous prime is 37746042634961. The next prime is 37746042634997. The reversal of 37746042634981 is 18943624064773.

It is a happy number.

37746042634981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2^k-37746042634981 is a prime.

It is a super-2 number, since 2×37746042634981² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37746042634901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8429216751 + ... + 8429221228.

It is an arithmetic number, because the mean of its divisors is an integer number (9440725268800).

Almost surely, 2^{37746042634981} is an apocalyptic number.

It is an amenable number.

37746042634981 is a deficient number, since it is larger than the sum of its proper divisors (16858440219).

37746042634981 is a wasteful number, since it uses less digits than its factorization.

37746042634981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16858440218.

The product of its (nonzero) digits is 146313216, while the sum is 64.

The spelling of 37746042634981 in words is "thirty-seven trillion, seven hundred forty-six billion, forty-two million, six hundred thirty-four thousand, nine hundred eighty-one".