51240313246 has 8 divisors (see below), whose sum is σ = 76898356920. Its totient is φ = 25607527608.

The previous prime is 51240313211. The next prime is 51240313259. The reversal of 51240313246 is 64231304215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6309436 + ... + 6317551.

It is an arithmetic number, because the mean of its divisors is an integer number (9612294615).

Almost surely, 2^51240313246 is an apocalyptic number.

51240313246 is a deficient number, since it is larger than the sum of its proper divisors (25658043674).

51240313246 is a wasteful number, since it uses less digits than its factorization.

51240313246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12629018.

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 51240313246 in words is "fifty-one billion, two hundred forty million, three hundred thirteen thousand, two hundred forty-six".