363993999649 has 16 divisors (see below), whose sum is σ = 416828247040. Its totient is φ = 311369002560.

The previous prime is 363993999647. The next prime is 363993999701. The reversal of 363993999649 is 946999399363.

It is not a de Polignac number, because 363993999649 - 2¹ = 363993999647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (363993999643) 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, 9897307 + ... + 9934015.

It is an arithmetic number, because the mean of its divisors is an integer number (26051765440).

Almost surely, 2^363993999649 is an apocalyptic number.

It is an amenable number.

363993999649 is a deficient number, since it is larger than the sum of its proper divisors (52834247391).

363993999649 is a wasteful number, since it uses less digits than its factorization.

363993999649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39520.

The product of its digits is 2066242608, while the sum is 79.

The spelling of 363993999649 in words is "three hundred sixty-three billion, nine hundred ninety-three million, nine hundred ninety-nine thousand, six hundred forty-nine".