51400072841 has 8 divisors (see below), whose sum is σ = 55789784064. Its totient is φ = 47072627280.

The previous prime is 51400072831. The next prime is 51400072861. The reversal of 51400072841 is 14827000415.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 51400072841 - 2²² = 51395878537 is a prime.

It is a super-2 number, since 2×51400072841² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51400072798 and 51400072807.

It is not an unprimeable number, because it can be changed into a prime (51400072831) 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, 15564695 + ... + 15567996.

It is an arithmetic number, because the mean of its divisors is an integer number (6973723008).

Almost surely, 2^51400072841 is an apocalyptic number.

It is an amenable number.

51400072841 is a deficient number, since it is larger than the sum of its proper divisors (4389711223).

51400072841 is a wasteful number, since it uses less digits than its factorization.

51400072841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31132831.

The product of its (nonzero) digits is 8960, while the sum is 32.

The spelling of 51400072841 in words is "fifty-one billion, four hundred million, seventy-two thousand, eight hundred forty-one".