21200763463 has 8 divisors (see below), whose sum is σ = 23129177616. Its totient is φ = 19272528000.

The previous prime is 21200763421. The next prime is 21200763469. The reversal of 21200763463 is 36436700212.

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

It is a de Polignac number, because none of the positive numbers 2^k-21200763463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21200763469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374313 + ... + 427213.

It is an arithmetic number, because the mean of its divisors is an integer number (2891147202).

Almost surely, 2^21200763463 is an apocalyptic number.

21200763463 is a deficient number, since it is larger than the sum of its proper divisors (1928414153).

21200763463 is a wasteful number, since it uses less digits than its factorization.

21200763463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89345.

The product of its (nonzero) digits is 36288, while the sum is 34.

The spelling of 21200763463 in words is "twenty-one billion, two hundred million, seven hundred sixty-three thousand, four hundred sixty-three".