63214626509 has 4 divisors (see below), whose sum is σ = 63215130204. Its totient is φ = 63214122816.

The previous prime is 63214626439. The next prime is 63214626511. The reversal of 63214626509 is 90562641236.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 5843838025 + 57370788484 = 76445^2 + 239522^2 .

It is a cyclic number.

It is not a de Polignac number, because 63214626509 - 2¹² = 63214622413 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 63214626509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63214626569) 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, 104069 + ... + 370485.

It is an arithmetic number, because the mean of its divisors is an integer number (15803782551).

Almost surely, 2^63214626509 is an apocalyptic number.

It is an amenable number.

63214626509 is a deficient number, since it is larger than the sum of its proper divisors (503695).

63214626509 is a wasteful number, since it uses less digits than its factorization.

63214626509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503694.

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 63214626509 in words is "sixty-three billion, two hundred fourteen million, six hundred twenty-six thousand, five hundred nine".