6611887542 has 32 divisors (see below), whose sum is σ = 14254974720. Its totient is φ = 2032428960.

The previous prime is 6611887511. The next prime is 6611887543. The reversal of 6611887542 is 2457881166.

It is a junction number, because it is equal to n+sod(n) for n = 6611887491 and 6611887500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6611887543) 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, 39309 + ... + 121527.

It is an arithmetic number, because the mean of its divisors is an integer number (445467960).

Almost surely, 2^6611887542 is an apocalyptic number.

6611887542 is an abundant number, since it is smaller than the sum of its proper divisors (7643087178).

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

6611887542 is a wasteful number, since it uses less digits than its factorization.

6611887542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83268.

The product of its digits is 645120, while the sum is 48.

The square root of 6611887542 is about 81313.5138952930. The cubic root of 6611887542 is about 1876.9029608790.

The spelling of 6611887542 in words is "six billion, six hundred eleven million, eight hundred eighty-seven thousand, five hundred forty-two".