6900531642 has 32 divisors (see below), whose sum is σ = 16236547200. Its totient is φ = 2164872384.

The previous prime is 6900531641. The next prime is 6900531661. The reversal of 6900531642 is 2461350096.

It is a happy number.

6900531642 is a `hidden beast` number, since 6 + 9 + 0 + 0 + 5 + 3 + 1 + 642 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 6900531597 and 6900531606.

It is not an unprimeable number, because it can be changed into a prime (6900531641) 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, 3757542 + ... + 3759377.

It is an arithmetic number, because the mean of its divisors is an integer number (507392100).

Almost surely, 2^6900531642 is an apocalyptic number.

6900531642 is an abundant number, since it is smaller than the sum of its proper divisors (9336015558).

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

6900531642 is a wasteful number, since it uses less digits than its factorization.

6900531642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7516947 (or 7516941 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 6900531642 is about 83069.4386763267. The cubic root of 6900531642 is about 1903.8271558034.

The spelling of 6900531642 in words is "six billion, nine hundred million, five hundred thirty-one thousand, six hundred forty-two".