427956620897 has 16 divisors (see below), whose sum is σ = 476204348928. Its totient is φ = 381923303040.

The previous prime is 427956620887. The next prime is 427956620899. The reversal of 427956620897 is 798026659724.

It is a cyclic number.

It is not a de Polignac number, because 427956620897 - 2¹⁴ = 427956604513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427956620899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97703 + ... + 930300.

It is an arithmetic number, because the mean of its divisors is an integer number (29762771808).

Almost surely, 2^427956620897 is an apocalyptic number.

It is an amenable number.

427956620897 is a deficient number, since it is larger than the sum of its proper divisors (48247728031).

427956620897 is a wasteful number, since it uses less digits than its factorization.

427956620897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029080.

The product of its (nonzero) digits is 91445760, while the sum is 65.

The spelling of 427956620897 in words is "four hundred twenty-seven billion, nine hundred fifty-six million, six hundred twenty thousand, eight hundred ninety-seven".