3649772917487 has 2 divisors, whose sum is σ = 3649772917488. Its totient is φ = 3649772917486.

The previous prime is 3649772917429. The next prime is 3649772917499. The reversal of 3649772917487 is 7847192779463.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3649772917487 - 2¹⁸ = 3649772655343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3649772917387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1824886458743 + 1824886458744.

It is an arithmetic number, because the mean of its divisors is an integer number (1824886458744).

Almost surely, 2^{3649772917487} is an apocalyptic number.

3649772917487 is a deficient number, since it is larger than the sum of its proper divisors (1).

3649772917487 is an equidigital number, since it uses as much as digits as its factorization.

3649772917487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 896168448, while the sum is 74.

The spelling of 3649772917487 in words is "three trillion, six hundred forty-nine billion, seven hundred seventy-two million, nine hundred seventeen thousand, four hundred eighty-seven".