2635540463 has 4 divisors (see below), whose sum is σ = 2691615840. Its totient is φ = 2579465088.

The previous prime is 2635540367. The next prime is 2635540489. The reversal of 2635540463 is 3640455362.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2635540463 - 2²⁴ = 2618763247 is a prime.

It is a super-2 number, since 2×2635540463² = 13892147064220508738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2635540493) 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, 28037618 + ... + 28037711.

It is an arithmetic number, because the mean of its divisors is an integer number (672903960).

Almost surely, 2^2635540463 is an apocalyptic number.

2635540463 is a deficient number, since it is larger than the sum of its proper divisors (56075377).

2635540463 is an equidigital number, since it uses as much as digits as its factorization.

2635540463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56075376.

The product of its (nonzero) digits is 259200, while the sum is 38.

The square root of 2635540463 is about 51337.5151619164. The cubic root of 2635540463 is about 1381.3059930537.

The spelling of 2635540463 in words is "two billion, six hundred thirty-five million, five hundred forty thousand, four hundred sixty-three".