63540840363 has 32 divisors (see below), whose sum is σ = 113751439872. Its totient is φ = 30469132800.

The previous prime is 63540840353. The next prime is 63540840437. The reversal of 63540840363 is 36304804536.

It is not a de Polignac number, because 63540840363 - 2¹⁷ = 63540709291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63540840343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10576558 + ... + 10582563.

It is an arithmetic number, because the mean of its divisors is an integer number (3554732496).

Almost surely, 2^63540840363 is an apocalyptic number.

63540840363 is a deficient number, since it is larger than the sum of its proper divisors (50210599509).

63540840363 is a wasteful number, since it uses less digits than its factorization.

63540840363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21159155.

The product of its (nonzero) digits is 622080, while the sum is 42.

The spelling of 63540840363 in words is "sixty-three billion, five hundred forty million, eight hundred forty thousand, three hundred sixty-three".