427747630831 has 8 divisors (see below), whose sum is σ = 452962686384. Its totient is φ = 402538512000.

The previous prime is 427747630829. The next prime is 427747630847. The reversal of 427747630831 is 138036747724.

It is a happy number.

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

It is not a de Polignac number, because 427747630831 - 2¹ = 427747630829 is a prime.

It is a super-2 number, since 2×427747630831² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427747630811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1335405 + ... + 1624438.

It is an arithmetic number, because the mean of its divisors is an integer number (56620335798).

Almost surely, 2^427747630831 is an apocalyptic number.

427747630831 is a deficient number, since it is larger than the sum of its proper divisors (25215055553).

427747630831 is a wasteful number, since it uses less digits than its factorization.

427747630831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2968361.

The product of its (nonzero) digits is 4741632, while the sum is 52.

The spelling of 427747630831 in words is "four hundred twenty-seven billion, seven hundred forty-seven million, six hundred thirty thousand, eight hundred thirty-one".