427777681713 has 64 divisors (see below), whose sum is σ = 626316364800. Its totient is φ = 258794403840.

The previous prime is 427777681687. The next prime is 427777681733. The reversal of 427777681713 is 317186777724.

It is a happy number.

It is not a de Polignac number, because 427777681713 - 2⁶ = 427777681649 is a prime.

It is a super-2 number, since 2×427777681713² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (427777681733) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28249098 + ... + 28264236.

It is an arithmetic number, because the mean of its divisors is an integer number (9786193200).

Almost surely, 2^427777681713 is an apocalyptic number.

It is an amenable number.

427777681713 is a deficient number, since it is larger than the sum of its proper divisors (198538683087).

427777681713 is a wasteful number, since it uses less digits than its factorization.

427777681713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15422.

The product of its digits is 19361664, while the sum is 60.

The spelling of 427777681713 in words is "four hundred twenty-seven billion, seven hundred seventy-seven million, six hundred eighty-one thousand, seven hundred thirteen".