3778320523 has 4 divisors (see below), whose sum is σ = 3784607848. Its totient is φ = 3772033200.

The previous prime is 3778320521. The next prime is 3778320569. The reversal of 3778320523 is 3250238773.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3250238773 = 131 ⋅24810983.

It is a cyclic number.

It is not a de Polignac number, because 3778320523 - 2¹ = 3778320521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3778320521) 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, 3142761 + ... + 3143962.

It is an arithmetic number, because the mean of its divisors is an integer number (946151962).

Almost surely, 2^3778320523 is an apocalyptic number.

3778320523 is a deficient number, since it is larger than the sum of its proper divisors (6287325).

3778320523 is an equidigital number, since it uses as much as digits as its factorization.

3778320523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6287324.

The product of its (nonzero) digits is 211680, while the sum is 40.

The square root of 3778320523 is about 61468.0447305753. The cubic root of 3778320523 is about 1557.5174907065.

The spelling of 3778320523 in words is "three billion, seven hundred seventy-eight million, three hundred twenty thousand, five hundred twenty-three".