51114146819 has 4 divisors (see below), whose sum is σ = 51516620544. Its totient is φ = 50711673096.

The previous prime is 51114146803. The next prime is 51114146903. The reversal of 51114146819 is 91864141115.

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 51114146819 - 2⁴ = 51114146803 is a prime.

It is a super-2 number, since 2×51114146819² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51114146519) 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, 201236672 + ... + 201236925.

It is an arithmetic number, because the mean of its divisors is an integer number (12879155136).

Almost surely, 2^51114146819 is an apocalyptic number.

51114146819 is a deficient number, since it is larger than the sum of its proper divisors (402473725).

51114146819 is a wasteful number, since it uses less digits than its factorization.

51114146819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402473724.

The product of its digits is 34560, while the sum is 41.

The spelling of 51114146819 in words is "fifty-one billion, one hundred fourteen million, one hundred forty-six thousand, eight hundred nineteen".