51011654334 has 16 divisors (see below), whose sum is σ = 102289692672. Its totient is φ = 16959487448.

The previous prime is 51011654321. The next prime is 51011654339. The reversal of 51011654334 is 43345611015.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 51011654295 and 51011654304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51011654339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11096844 + ... + 11101439.

It is an arithmetic number, because the mean of its divisors is an integer number (6393105792).

Almost surely, 2^51011654334 is an apocalyptic number.

51011654334 is an abundant number, since it is smaller than the sum of its proper divisors (51278038338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51011654334 is a wasteful number, since it uses less digits than its factorization.

51011654334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22198671.

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 51011654334 in words is "fifty-one billion, eleven million, six hundred fifty-four thousand, three hundred thirty-four".