2403643063 has 4 divisors (see below), whose sum is σ = 2481179968. Its totient is φ = 2326106160.

The previous prime is 2403643061. The next prime is 2403643079. The reversal of 2403643063 is 3603463042.

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 2403643063 - 2¹ = 2403643061 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 77536873 = 2403643063 / (2 + 4 + 0 + 3 + 6 + 4 + 3 + 0 + 6 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2403643061) 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, 38768406 + ... + 38768467.

It is an arithmetic number, because the mean of its divisors is an integer number (620294992).

Almost surely, 2^2403643063 is an apocalyptic number.

2403643063 is a deficient number, since it is larger than the sum of its proper divisors (77536905).

2403643063 is an equidigital number, since it uses as much as digits as its factorization.

2403643063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77536904.

The product of its (nonzero) digits is 31104, while the sum is 31.

The square root of 2403643063 is about 49026.9626124238. The cubic root of 2403643063 is about 1339.5429983509.

The spelling of 2403643063 in words is "two billion, four hundred three million, six hundred forty-three thousand, sixty-three".