427737771468 has 240 divisors, whose sum is σ = 1329254750208. Its totient is φ = 117363168000.

The previous prime is 427737771463. The next prime is 427737771473. The reversal of 427737771468 is 864177737724.

It is a happy number.

427737771468 is a `hidden beast` number, since 4 + 2 + 77 + 37 + 7 + 71 + 468 = 666.

427737771468 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (427737771463) and next prime (427737771473).

It is a super-2 number, since 2×427737771468² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (427737771463) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 9187128 + ... + 9233568.

Almost surely, 2^427737771468 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 427737771468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (664627375104).

427737771468 is an abundant number, since it is smaller than the sum of its proper divisors (901516978740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

427737771468 is a wasteful number, since it uses less digits than its factorization.

427737771468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46626 (or 46615 counting only the distinct ones).

The product of its digits is 77446656, while the sum is 63.

The spelling of 427737771468 in words is "four hundred twenty-seven billion, seven hundred thirty-seven million, seven hundred seventy-one thousand, four hundred sixty-eight".