51647085286 has 8 divisors (see below), whose sum is σ = 77476021920. Its totient is φ = 25821744648.

The previous prime is 51647085257. The next prime is 51647085299. The reversal of 51647085286 is 68258074615.

It is a happy number.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 862801 + ... + 920716.

It is an arithmetic number, because the mean of its divisors is an integer number (9684502740).

Almost surely, 2^51647085286 is an apocalyptic number.

51647085286 is a deficient number, since it is larger than the sum of its proper divisors (25828936634).

51647085286 is a wasteful number, since it uses less digits than its factorization.

51647085286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797998.

The product of its (nonzero) digits is 3225600, while the sum is 52.

The spelling of 51647085286 in words is "fifty-one billion, six hundred forty-seven million, eighty-five thousand, two hundred eighty-six".