51263633236 has 24 divisors (see below), whose sum is σ = 90128009216. Its totient is φ = 25512965280.

The previous prime is 51263633207. The next prime is 51263633257. The reversal of 51263633236 is 63233636215.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1074685 + ... + 1121371.

Almost surely, 2^51263633236 is an apocalyptic number.

It is an amenable number.

51263633236 is a deficient number, since it is larger than the sum of its proper divisors (38864375980).

51263633236 is a wasteful number, since it uses less digits than its factorization.

51263633236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47959 (or 47957 counting only the distinct ones).

The product of its digits is 349920, while the sum is 40.

The spelling of 51263633236 in words is "fifty-one billion, two hundred sixty-three million, six hundred thirty-three thousand, two hundred thirty-six".