51894387141 has 8 divisors (see below), whose sum is σ = 69263779104. Its totient is φ = 34560626640.

The previous prime is 51894387133. The next prime is 51894387151. The reversal of 51894387141 is 14178349815.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51894387141 - 2³ = 51894387133 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51894387121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8904466 + ... + 8910291.

It is an arithmetic number, because the mean of its divisors is an integer number (8657972388).

Almost surely, 2^51894387141 is an apocalyptic number.

It is an amenable number.

51894387141 is a deficient number, since it is larger than the sum of its proper divisors (17369391963).

51894387141 is a wasteful number, since it uses less digits than its factorization.

51894387141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17815731.

The product of its digits is 967680, while the sum is 51.

The spelling of 51894387141 in words is "fifty-one billion, eight hundred ninety-four million, three hundred eighty-seven thousand, one hundred forty-one".