51461692486 has 8 divisors (see below), whose sum is σ = 77194445400. Its totient is φ = 25730210688.

The previous prime is 51461692463. The next prime is 51461692519. The reversal of 51461692486 is 68429616415.

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, 209136 + ... + 382963.

It is an arithmetic number, because the mean of its divisors is an integer number (9649305675).

Almost surely, 2^51461692486 is an apocalyptic number.

51461692486 is a deficient number, since it is larger than the sum of its proper divisors (25732752914).

51461692486 is a wasteful number, since it uses less digits than its factorization.

51461692486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635558.

The product of its digits is 2488320, while the sum is 52.

The spelling of 51461692486 in words is "fifty-one billion, four hundred sixty-one million, six hundred ninety-two thousand, four hundred eighty-six".