51766538103 has 96 divisors (see below), whose sum is σ = 94004951040. Its totient is φ = 27807792480.

The previous prime is 51766538069. The next prime is 51766538111. The reversal of 51766538103 is 30183566715.

51766538103 is a `hidden beast` number, since 5 + 1 + 7 + 6 + 6 + 538 + 103 = 666.

It is not a de Polignac number, because 51766538103 - 2¹⁶ = 51766472567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51766538303) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4227676 + ... + 4239902.

It is an arithmetic number, because the mean of its divisors is an integer number (979218240).

Almost surely, 2^51766538103 is an apocalyptic number.

51766538103 is a deficient number, since it is larger than the sum of its proper divisors (42238412937).

51766538103 is a wasteful number, since it uses less digits than its factorization.

51766538103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12399 (or 12387 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The spelling of 51766538103 in words is "fifty-one billion, seven hundred sixty-six million, five hundred thirty-eight thousand, one hundred three".