3745345777 has 4 divisors (see below), whose sum is σ = 3836695716. Its totient is φ = 3653995840.

The previous prime is 3745345741. The next prime is 3745345787. The reversal of 3745345777 is 7775435473.

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 2214267136 + 1531078641 = 47056^2 + 39129^2 .

It is a cyclic number.

It is not a de Polignac number, because 3745345777 - 2¹⁵ = 3745313009 is a prime.

It is a super-2 number, since 2×3745345777² = 28055229978583467458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3745345787) 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, 45674908 + ... + 45674989.

It is an arithmetic number, because the mean of its divisors is an integer number (959173929).

Almost surely, 2^3745345777 is an apocalyptic number.

It is an amenable number.

3745345777 is a deficient number, since it is larger than the sum of its proper divisors (91349939).

3745345777 is an equidigital number, since it uses as much as digits as its factorization.

3745345777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91349938.

The product of its digits is 8643600, while the sum is 52.

The square root of 3745345777 is about 61199.2301994069. The cubic root of 3745345777 is about 1552.9732423068.

The spelling of 3745345777 in words is "three billion, seven hundred forty-five million, three hundred forty-five thousand, seven hundred seventy-seven".