7855532742 has 32 divisors (see below), whose sum is σ = 16232924160. Its totient is φ = 2531691360.

The previous prime is 7855532689. The next prime is 7855532749. The reversal of 7855532742 is 2472355587.

It is a junction number, because it is equal to n+sod(n) for n = 7855532691 and 7855532700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7855532749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187233 + ... + 225315.

It is an arithmetic number, because the mean of its divisors is an integer number (507278880).

Almost surely, 2^7855532742 is an apocalyptic number.

7855532742 is an abundant number, since it is smaller than the sum of its proper divisors (8377391418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7855532742 is a wasteful number, since it uses less digits than its factorization.

7855532742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39228.

The product of its digits is 2352000, while the sum is 48.

The square root of 7855532742 is about 88631.4433031529. The cubic root of 7855532742 is about 1987.8878579154.

The spelling of 7855532742 in words is "seven billion, eight hundred fifty-five million, five hundred thirty-two thousand, seven hundred forty-two".