63129212534 has 4 divisors (see below), whose sum is σ = 94693818804. Its totient is φ = 31564606266.

The previous prime is 63129212519. The next prime is 63129212543. The reversal of 63129212534 is 43521292136.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15782303132 + ... + 15782303135.

It is an arithmetic number, because the mean of its divisors is an integer number (23673454701).

Almost surely, 2^63129212534 is an apocalyptic number.

63129212534 is a deficient number, since it is larger than the sum of its proper divisors (31564606270).

63129212534 is a wasteful number, since it uses less digits than its factorization.

63129212534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31564606269.

The product of its digits is 77760, while the sum is 38.

The spelling of 63129212534 in words is "sixty-three billion, one hundred twenty-nine million, two hundred twelve thousand, five hundred thirty-four".