3778732378773 has 36 divisors (see below), whose sum is σ = 6161623046124. Its totient is φ = 2228245113600.

The previous prime is 3778732378763. The next prime is 3778732378777.

3778732378773 is a `hidden beast` number, since 377 + 87 + 3 + 2 + 37 + 87 + 73 = 666.

3778732378773 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 3638048872689 + 140683506084 = 1907367^2 + 375078^2 .

It is not a de Polignac number, because 3778732378773 - 2¹⁷ = 3778732247701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3778732378777) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 46850388 + ... + 46930973.

Almost surely, 2^{3778732378773} is an apocalyptic number.

3778732378773 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3778732378773 is a deficient number, since it is larger than the sum of its proper divisors (2382890667351).

3778732378773 is a wasteful number, since it uses less digits than its factorization.

3778732378773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93781426 (or 93781412 counting only the distinct ones).

The product of its digits is 1219784832, while the sum is 72.

The spelling of 3778732378773 in words is "three trillion, seven hundred seventy-eight billion, seven hundred thirty-two million, three hundred seventy-eight thousand, seven hundred seventy-three".