63216793471 has 16 divisors (see below), whose sum is σ = 68474560000. Its totient is φ = 58015903968.

The previous prime is 63216793469. The next prime is 63216793481. The reversal of 63216793471 is 17439761236.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 63216793471 - 2¹ = 63216793469 is a prime.

It is a super-3 number, since 3×63216793471³ (a number of 33 digits) contains 333 as substring.

It is the 251430-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63216793481) by changing a digit.

It is a nontrivial repunit in base 251429.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3610480 + ... + 3627946.

It is an arithmetic number, because the mean of its divisors is an integer number (4279660000).

Almost surely, 2^63216793471 is an apocalyptic number.

63216793471 is a deficient number, since it is larger than the sum of its proper divisors (5257766529).

63216793471 is a wasteful number, since it uses less digits than its factorization.

63216793471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19078.

The product of its digits is 1143072, while the sum is 49.

The spelling of 63216793471 in words is "sixty-three billion, two hundred sixteen million, seven hundred ninety-three thousand, four hundred seventy-one".