20402632463 has 8 divisors (see below), whose sum is σ = 21017372880. Its totient is φ = 19791224640.

The previous prime is 20402632451. The next prime is 20402632469. The reversal of 20402632463 is 36423620402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20402632463 - 2⁴ = 20402632447 is a prime.

It is a super-2 number, since 2×20402632463² (a number of 21 digits) 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 (20402632469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 820718 + ... + 845211.

It is an arithmetic number, because the mean of its divisors is an integer number (2627171610).

Almost surely, 2^20402632463 is an apocalyptic number.

20402632463 is a deficient number, since it is larger than the sum of its proper divisors (614740417).

20402632463 is a wasteful number, since it uses less digits than its factorization.

20402632463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666297.

The product of its (nonzero) digits is 41472, while the sum is 32.

The spelling of 20402632463 in words is "twenty billion, four hundred two million, six hundred thirty-two thousand, four hundred sixty-three".