51227075774 has 24 divisors (see below), whose sum is σ = 89430812568. Its totient is φ = 21943459440.

The previous prime is 51227075737. The next prime is 51227075813. The reversal of 51227075774 is 47757072215.

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 11 ways as a sum of consecutive naturals, for example, 67112 + ... + 327044.

It is an arithmetic number, because the mean of its divisors is an integer number (3726283857).

Almost surely, 2^51227075774 is an apocalyptic number.

51227075774 is a deficient number, since it is larger than the sum of its proper divisors (38203736794).

51227075774 is a wasteful number, since it uses less digits than its factorization.

51227075774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261960 (or 261953 counting only the distinct ones).

The product of its (nonzero) digits is 960400, while the sum is 47.

The spelling of 51227075774 in words is "fifty-one billion, two hundred twenty-seven million, seventy-five thousand, seven hundred seventy-four".