3778137814573 has 4 divisors (see below), whose sum is σ = 3778235658940. Its totient is φ = 3778039970208.

The previous prime is 3778137814571. The next prime is 3778137814631. The reversal of 3778137814573 is 3754187318773.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1808263810089 + 1969874004484 = 1344717^2 + 1403522^2 .

It is a cyclic number.

It is not a de Polignac number, because 3778137814573 - 2¹ = 3778137814571 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3778137814571) 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, 48864240 + ... + 48941497.

It is an arithmetic number, because the mean of its divisors is an integer number (944558914735).

Almost surely, 2^{3778137814573} is an apocalyptic number.

It is an amenable number.

3778137814573 is a deficient number, since it is larger than the sum of its proper divisors (97844367).

3778137814573 is an equidigital number, since it uses as much as digits as its factorization.

3778137814573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97844366.

The product of its digits is 82978560, while the sum is 64.

The spelling of 3778137814573 in words is "three trillion, seven hundred seventy-eight billion, one hundred thirty-seven million, eight hundred fourteen thousand, five hundred seventy-three".