427643227461516 has 96 divisors (see below), whose sum is σ = 1103026259252736. Its totient is φ = 127874018496000.

The previous prime is 427643227461431. The next prime is 427643227461629. The reversal of 427643227461516 is 615164722346724.

It is a happy number.

It is a super-2 number, since 2×427643227461516² (a number of 30 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 427643227461516.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52146795 + ... + 59787746.

It is an arithmetic number, because the mean of its divisors is an integer number (11489856867216).

Almost surely, 2^{427643227461516} is an apocalyptic number.

It is an amenable number.

427643227461516 is an abundant number, since it is smaller than the sum of its proper divisors (675383031791220).

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

427643227461516 is a wasteful number, since it uses less digits than its factorization.

427643227461516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111934943 (or 111934941 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 60.

The spelling of 427643227461516 in words is "four hundred twenty-seven trillion, six hundred forty-three billion, two hundred twenty-seven million, four hundred sixty-one thousand, five hundred sixteen".