37781343723 has 8 divisors (see below), whose sum is σ = 50413264336. Its totient is φ = 25168492800.

The previous prime is 37781343683. The next prime is 37781343731. The reversal of 37781343723 is 32734318773.

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

It is not a de Polignac number, because 37781343723 - 2¹² = 37781339627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (37781343773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4762798 + ... + 4770723.

It is an arithmetic number, because the mean of its divisors is an integer number (6301658042).

Almost surely, 2^37781343723 is an apocalyptic number.

37781343723 is a deficient number, since it is larger than the sum of its proper divisors (12631920613).

37781343723 is a wasteful number, since it uses less digits than its factorization.

37781343723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9534845.

The product of its digits is 1778112, while the sum is 48.

The spelling of 37781343723 in words is "thirty-seven billion, seven hundred eighty-one million, three hundred forty-three thousand, seven hundred twenty-three".