427747632028 has 12 divisors (see below), whose sum is σ = 749152930680. Its totient is φ = 213703937552.

The previous prime is 427747632023. The next prime is 427747632029. The reversal of 427747632028 is 820236747724.

It is a super-3 number, since 3×427747632028³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427747632023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42463951 + ... + 42474022.

It is an arithmetic number, because the mean of its divisors is an integer number (62429410890).

Almost surely, 2^427747632028 is an apocalyptic number.

It is an amenable number.

427747632028 is a deficient number, since it is larger than the sum of its proper divisors (321405298652).

427747632028 is a wasteful number, since it uses less digits than its factorization.

427747632028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84939236 (or 84939234 counting only the distinct ones).

The product of its (nonzero) digits is 6322176, while the sum is 52.

The spelling of 427747632028 in words is "four hundred twenty-seven billion, seven hundred forty-seven million, six hundred thirty-two thousand, twenty-eight".