1778938232054 has 8 divisors (see below), whose sum is σ = 2668491564408. Its totient is φ = 889441043920.

The previous prime is 1778938232041. The next prime is 1778938232077. The reversal of 1778938232054 is 4502328398771.

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

It is a super-2 number, since 2×1778938232054² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1778938231984 and 1778938232002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13956752 + ... + 14083635.

It is an arithmetic number, because the mean of its divisors is an integer number (333561445551).

Almost surely, 2^{1778938232054} is an apocalyptic number.

1778938232054 is a deficient number, since it is larger than the sum of its proper divisors (889553332354).

1778938232054 is a wasteful number, since it uses less digits than its factorization.

1778938232054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28072110.

The product of its (nonzero) digits is 20321280, while the sum is 59.

The spelling of 1778938232054 in words is "one trillion, seven hundred seventy-eight billion, nine hundred thirty-eight million, two hundred thirty-two thousand, fifty-four".