427135722742 has 8 divisors (see below), whose sum is σ = 642376440576. Its totient is φ = 213010242552.

The previous prime is 427135722721. The next prime is 427135722749. The reversal of 427135722742 is 247227531724.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 427135722692 and 427135722701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427135722749) 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, 278808453 + ... + 278809984.

It is an arithmetic number, because the mean of its divisors is an integer number (80297055072).

Almost surely, 2^427135722742 is an apocalyptic number.

427135722742 is a deficient number, since it is larger than the sum of its proper divisors (215240717834).

427135722742 is a wasteful number, since it uses less digits than its factorization.

427135722742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557618822.

The product of its digits is 1317120, while the sum is 46.

The spelling of 427135722742 in words is "four hundred twenty-seven billion, one hundred thirty-five million, seven hundred twenty-two thousand, seven hundred forty-two".