51100178820044 has 12 divisors (see below), whose sum is σ = 89463253262544. Its totient is φ = 25539249316464.

The previous prime is 51100178820043. The next prime is 51100178820091. The reversal of 51100178820044 is 44002887100115.

It is a super-2 number, since 2×51100178820044² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51100178819983 and 51100178820010.

It is not an unprimeable number, because it can be changed into a prime (51100178820043) 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, 2710012784 + ... + 2710031639.

It is an arithmetic number, because the mean of its divisors is an integer number (7455271105212).

Almost surely, 2^{51100178820044} is an apocalyptic number.

It is an amenable number.

51100178820044 is a deficient number, since it is larger than the sum of its proper divisors (38363074442500).

51100178820044 is a wasteful number, since it uses less digits than its factorization.

51100178820044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5420046784 (or 5420046782 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 41.

The spelling of 51100178820044 in words is "fifty-one trillion, one hundred billion, one hundred seventy-eight million, eight hundred twenty thousand, forty-four".