51362067993 has 16 divisors (see below), whose sum is σ = 73765441536. Its totient is φ = 31696085520.

The previous prime is 51362067983. The next prime is 51362068001. The reversal of 51362067993 is 39976026315.

It is a happy number.

It is not a de Polignac number, because 51362067993 - 2²⁸ = 51093632537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51362067973) 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, 12003955 + ... + 12008232.

It is an arithmetic number, because the mean of its divisors is an integer number (4610340096).

Almost surely, 2^51362067993 is an apocalyptic number.

It is an amenable number.

51362067993 is a deficient number, since it is larger than the sum of its proper divisors (22403373543).

51362067993 is a wasteful number, since it uses less digits than its factorization.

51362067993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24012244.

The product of its (nonzero) digits is 1837080, while the sum is 51.

The spelling of 51362067993 in words is "fifty-one billion, three hundred sixty-two million, sixty-seven thousand, nine hundred ninety-three".