3780536649 has 16 divisors (see below), whose sum is σ = 5090226624. Its totient is φ = 2495720000.

The previous prime is 3780536623. The next prime is 3780536663. The reversal of 3780536649 is 9466350873.

It is a cyclic number.

It is not a de Polignac number, because 3780536649 - 2¹³ = 3780528457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3780536849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115759 + ... + 144779.

It is an arithmetic number, because the mean of its divisors is an integer number (318139164).

Almost surely, 2^3780536649 is an apocalyptic number.

It is an amenable number.

3780536649 is a deficient number, since it is larger than the sum of its proper divisors (1309689975).

3780536649 is a wasteful number, since it uses less digits than its factorization.

3780536649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29448.

The product of its (nonzero) digits is 3265920, while the sum is 51.

The square root of 3780536649 is about 61486.0687391868. The cubic root of 3780536649 is about 1557.8219452354.

The spelling of 3780536649 in words is "three billion, seven hundred eighty million, five hundred thirty-six thousand, six hundred forty-nine".