51380667603 has 16 divisors (see below), whose sum is σ = 76480272000. Its totient is φ = 34091434440.

The previous prime is 51380667601. The next prime is 51380667617. The reversal of 51380667603 is 30676608315.

51380667603 is a `hidden beast` number, since 5 + 1 + 38 + 0 + 6 + 6 + 7 + 603 = 666.

It is not a de Polignac number, because 51380667603 - 2¹ = 51380667601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51380667601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4503753 + ... + 4515146.

It is an arithmetic number, because the mean of its divisors is an integer number (4780017000).

Almost surely, 2^51380667603 is an apocalyptic number.

51380667603 is a deficient number, since it is larger than the sum of its proper divisors (25099604397).

51380667603 is a wasteful number, since it uses less digits than its factorization.

51380667603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9019119 (or 9019113 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 51380667603 in words is "fifty-one billion, three hundred eighty million, six hundred sixty-seven thousand, six hundred three".