2151748127768 has 64 divisors (see below), whose sum is σ = 4189167590400. Its totient is φ = 1035061752960.

The previous prime is 2151748127701. The next prime is 2151748127801. The reversal of 2151748127768 is 8677218471512.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31119971 + ... + 31189037.

It is an arithmetic number, because the mean of its divisors is an integer number (65455743600).

Almost surely, 2^{2151748127768} is an apocalyptic number.

It is an amenable number.

2151748127768 is a deficient number, since it is larger than the sum of its proper divisors (2037419462632).

2151748127768 is a wasteful number, since it uses less digits than its factorization.

2151748127768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69840 (or 69836 counting only the distinct ones).

The product of its digits is 10536960, while the sum is 59.

The spelling of 2151748127768 in words is "two trillion, one hundred fifty-one billion, seven hundred forty-eight million, one hundred twenty-seven thousand, seven hundred sixty-eight".