51891754676 has 24 divisors (see below), whose sum is σ = 91181946240. Its totient is φ = 25839827552.

The previous prime is 51891754631. The next prime is 51891754769. The reversal of 51891754676 is 67645719815.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 6685790 + ... + 6693546.

It is an arithmetic number, because the mean of its divisors is an integer number (3799247760).

Almost surely, 2^51891754676 is an apocalyptic number.

It is an amenable number.

51891754676 is a deficient number, since it is larger than the sum of its proper divisors (39290191564).

51891754676 is a wasteful number, since it uses less digits than its factorization.

51891754676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14383 (or 14381 counting only the distinct ones).

The product of its digits is 12700800, while the sum is 59.

The spelling of 51891754676 in words is "fifty-one billion, eight hundred ninety-one million, seven hundred fifty-four thousand, six hundred seventy-six".