4271557506645 has 48 divisors (see below), whose sum is σ = 8073450539712. Its totient is φ = 1911746004480.

The previous prime is 4271557506637. The next prime is 4271557506677. The reversal of 4271557506645 is 5466057551724.

It is not a de Polignac number, because 4271557506645 - 2³ = 4271557506637 is a prime.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 76564504 + ... + 76620273.

It is an arithmetic number, because the mean of its divisors is an integer number (168196886244).

Almost surely, 2^{4271557506645} is an apocalyptic number.

It is an amenable number.

4271557506645 is a deficient number, since it is larger than the sum of its proper divisors (3801893033067).

4271557506645 is a wasteful number, since it uses less digits than its factorization.

4271557506645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153184822 (or 153184809 counting only the distinct ones).

The product of its (nonzero) digits is 35280000, while the sum is 57.

The spelling of 4271557506645 in words is "four trillion, two hundred seventy-one billion, five hundred fifty-seven million, five hundred six thousand, six hundred forty-five".