8742055631 has 4 divisors (see below), whose sum is σ = 8797737672. Its totient is φ = 8686373592.

The previous prime is 8742055627. The next prime is 8742055687. The reversal of 8742055631 is 1365502478.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8742055631 - 2² = 8742055627 is a prime.

It is a super-2 number, since 2×8742055631² (a number of 21 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 (8742055031) 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, 27840785 + ... + 27841098.

It is an arithmetic number, because the mean of its divisors is an integer number (2199434418).

Almost surely, 2^8742055631 is an apocalyptic number.

8742055631 is a deficient number, since it is larger than the sum of its proper divisors (55682041).

8742055631 is a wasteful number, since it uses less digits than its factorization.

8742055631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55682040.

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 8742055631 is about 93498.9605878055. The cubic root of 8742055631 is about 2060.0188227614.

The spelling of 8742055631 in words is "eight billion, seven hundred forty-two million, fifty-five thousand, six hundred thirty-one".