51648690374 has 8 divisors (see below), whose sum is σ = 78406445880. Its totient is φ = 25513208416.

The previous prime is 51648690349. The next prime is 51648690377. The reversal of 51648690374 is 47309684615.

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

It is a super-3 number, since 3×51648690374³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51648690377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155568179 + ... + 155568510.

It is an arithmetic number, because the mean of its divisors is an integer number (9800805735).

Almost surely, 2^51648690374 is an apocalyptic number.

51648690374 is a deficient number, since it is larger than the sum of its proper divisors (26757755506).

51648690374 is a wasteful number, since it uses less digits than its factorization.

51648690374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311136774.

The product of its (nonzero) digits is 4354560, while the sum is 53.

The spelling of 51648690374 in words is "fifty-one billion, six hundred forty-eight million, six hundred ninety thousand, three hundred seventy-four".