427540664967 has 32 divisors (see below), whose sum is σ = 621657835008. Its totient is φ = 259782754176.

The previous prime is 427540664939. The next prime is 427540664981. The reversal of 427540664967 is 769466045724.

It is not a de Polignac number, because 427540664967 - 2¹⁵ = 427540632199 is a prime.

It is a super-2 number, since 2×427540664967² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 427540664967.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427540664267) 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 31 ways as a sum of consecutive naturals, for example, 5734533 + ... + 5808609.

It is an arithmetic number, because the mean of its divisors is an integer number (19426807344).

Almost surely, 2^427540664967 is an apocalyptic number.

427540664967 is a deficient number, since it is larger than the sum of its proper divisors (194117170041).

427540664967 is a wasteful number, since it uses less digits than its factorization.

427540664967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75959.

The product of its (nonzero) digits is 60963840, while the sum is 60.

The spelling of 427540664967 in words is "four hundred twenty-seven billion, five hundred forty million, six hundred sixty-four thousand, nine hundred sixty-seven".