63226478436 has 24 divisors (see below), whose sum is σ = 160940127264. Its totient is φ = 19159538880.

The previous prime is 63226478423. The next prime is 63226478459. The reversal of 63226478436 is 63487462236.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239494105 + ... + 239494368.

It is an arithmetic number, because the mean of its divisors is an integer number (6705838636).

Almost surely, 2^63226478436 is an apocalyptic number.

63226478436 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

63226478436 is an abundant number, since it is smaller than the sum of its proper divisors (97713648828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63226478436 is a wasteful number, since it uses less digits than its factorization.

63226478436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478988491 (or 478988489 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 51.

The spelling of 63226478436 in words is "sixty-three billion, two hundred twenty-six million, four hundred seventy-eight thousand, four hundred thirty-six".