51142262299 has 4 divisors (see below), whose sum is σ = 51143013520. Its totient is φ = 51141511080.

The previous prime is 51142262293. The next prime is 51142262351. The reversal of 51142262299 is 99226224115.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51142262299 - 2⁹ = 51142261787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51142262293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262047 + ... + 413464.

It is an arithmetic number, because the mean of its divisors is an integer number (12785753380).

Almost surely, 2^51142262299 is an apocalyptic number.

51142262299 is a deficient number, since it is larger than the sum of its proper divisors (751221).

51142262299 is an equidigital number, since it uses as much as digits as its factorization.

51142262299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751220.

The product of its digits is 155520, while the sum is 43.

The spelling of 51142262299 in words is "fifty-one billion, one hundred forty-two million, two hundred sixty-two thousand, two hundred ninety-nine".