51124825717845 has 64 divisors (see below), whose sum is σ = 94489215814656. Its totient is φ = 23328706913280.

The previous prime is 51124825717783. The next prime is 51124825717907. The reversal of 51124825717845 is 54871752842115.

It is an interprime number because it is at equal distance from previous prime (51124825717783) and next prime (51124825717907).

It is not a de Polignac number, because 51124825717845 - 2⁷ = 51124825717717 is a prime.

It is a super-2 number, since 2×51124825717845² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 68483082 + ... + 69225588.

It is an arithmetic number, because the mean of its divisors is an integer number (1476393997104).

Almost surely, 2^{51124825717845} is an apocalyptic number.

51124825717845 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51124825717845 is a deficient number, since it is larger than the sum of its proper divisors (43364390096811).

51124825717845 is a wasteful number, since it uses less digits than its factorization.

51124825717845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767090.

The product of its digits is 25088000, while the sum is 60.

The spelling of 51124825717845 in words is "fifty-one trillion, one hundred twenty-four billion, eight hundred twenty-five million, seven hundred seventeen thousand, eight hundred forty-five".