3781526378523 has 16 divisors (see below), whose sum is σ = 5053714039296. Its totient is φ = 2515180870080.

The previous prime is 3781526378507. The next prime is 3781526378551. The reversal of 3781526378523 is 3258736251873.

It is not a de Polignac number, because 3781526378523 - 2⁴ = 3781526378507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3781526379523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5262378 + ... + 5937648.

It is an arithmetic number, because the mean of its divisors is an integer number (315857127456).

Almost surely, 2^{3781526378523} is an apocalyptic number.

3781526378523 is a deficient number, since it is larger than the sum of its proper divisors (1272187660773).

3781526378523 is a wasteful number, since it uses less digits than its factorization.

3781526378523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679594.

The product of its digits is 50803200, while the sum is 60.

The spelling of 3781526378523 in words is "three trillion, seven hundred eighty-one billion, five hundred twenty-six million, three hundred seventy-eight thousand, five hundred twenty-three".