6691624734 has 32 divisors (see below), whose sum is σ = 13641012000. Its totient is φ = 2187988992.

The previous prime is 6691624733. The next prime is 6691624741. The reversal of 6691624734 is 4374261966.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6691624733) 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, 14892 + ... + 116640.

It is an arithmetic number, because the mean of its divisors is an integer number (426281625).

Almost surely, 2^6691624734 is an apocalyptic number.

6691624734 is an abundant number, since it is smaller than the sum of its proper divisors (6949387266).

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

6691624734 is a wasteful number, since it uses less digits than its factorization.

6691624734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101964.

The product of its digits is 1306368, while the sum is 48.

The square root of 6691624734 is about 81802.3516410134. The cubic root of 6691624734 is about 1884.4177770190.

The spelling of 6691624734 in words is "six billion, six hundred ninety-one million, six hundred twenty-four thousand, seven hundred thirty-four".