42721475470047 has 192 divisors, whose sum is σ = 72744243167232. Its totient is φ = 25027386674400.

The previous prime is 42721475470001. The next prime is 42721475470049. The reversal of 42721475470047 is 74007457412724.

42721475470047 is a `hidden beast` number, since 4 + 27 + 2 + 147 + 5 + 470 + 0 + 4 + 7 = 666.

It is not a de Polignac number, because 42721475470047 - 2⁷ = 42721475469919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42721475469975 and 42721475470002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42721475470049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 11059142638 + ... + 11059146500.

It is an arithmetic number, because the mean of its divisors is an integer number (378876266496).

Almost surely, 2^{42721475470047} is an apocalyptic number.

42721475470047 is a deficient number, since it is larger than the sum of its proper divisors (30022767697185).

42721475470047 is a wasteful number, since it uses less digits than its factorization.

42721475470047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5045 (or 5011 counting only the distinct ones).

The product of its (nonzero) digits is 12293120, while the sum is 54.

The spelling of 42721475470047 in words is "forty-two trillion, seven hundred twenty-one billion, four hundred seventy-five million, four hundred seventy thousand, forty-seven".