51000704771811 has 64 divisors (see below), whose sum is σ = 73320028416000. Its totient is φ = 31437042126336.

The previous prime is 51000704771759. The next prime is 51000704771837. The reversal of 51000704771811 is 11817740700015.

It is not a de Polignac number, because 51000704771811 - 2⁶ = 51000704771747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51000704771011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1164723460 + ... + 1164767246.

It is an arithmetic number, because the mean of its divisors is an integer number (1145625444000).

Almost surely, 2^{51000704771811} is an apocalyptic number.

51000704771811 is a deficient number, since it is larger than the sum of its proper divisors (22319323644189).

51000704771811 is a wasteful number, since it uses less digits than its factorization.

51000704771811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46688.

The product of its (nonzero) digits is 54880, while the sum is 42.

The spelling of 51000704771811 in words is "fifty-one trillion, seven hundred four million, seven hundred seventy-one thousand, eight hundred eleven".