75556338920973 has 8 divisors (see below), whose sum is σ = 111935316920000. Its totient is φ = 50370892613964.

The previous prime is 75556338920939. The next prime is 75556338920999. The reversal of 75556338920973 is 37902983365557.

75556338920973 is a `hidden beast` number, since 7 + 5 + 5 + 563 + 38 + 9 + 20 + 9 + 7 + 3 = 666.

It is not a de Polignac number, because 75556338920973 - 2²² = 75556334726669 is a prime.

It is a super-2 number, since 2×75556338920973² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75556338922973) 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, 1399191461473 + ... + 1399191461526.

It is an arithmetic number, because the mean of its divisors is an integer number (13991914615000).

Almost surely, 2^{75556338920973} is an apocalyptic number.

It is an amenable number.

75556338920973 is a deficient number, since it is larger than the sum of its proper divisors (36378977999027).

75556338920973 is a wasteful number, since it uses less digits than its factorization.

75556338920973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2798382923008 (or 2798382923002 counting only the distinct ones).

The product of its (nonzero) digits is 1285956000, while the sum is 72.

The spelling of 75556338920973 in words is "seventy-five trillion, five hundred fifty-six billion, three hundred thirty-eight million, nine hundred twenty thousand, nine hundred seventy-three".