6909542748 has 36 divisors (see below), whose sum is σ = 17620363488. Its totient is φ = 2282797440.

The previous prime is 6909542729. The next prime is 6909542767. The reversal of 6909542748 is 8472459096.

6909542748 is a `hidden beast` number, since 6 + 90 + 9 + 542 + 7 + 4 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (6909542729) and next prime (6909542767).

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 6909542694 and 6909542703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 845188 + ... + 853323.

Almost surely, 2^6909542748 is an apocalyptic number.

It is an amenable number.

6909542748 is an abundant number, since it is smaller than the sum of its proper divisors (10710820740).

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

6909542748 is a wasteful number, since it uses less digits than its factorization.

6909542748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1698634 (or 1698629 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The square root of 6909542748 is about 83123.6593756555. The cubic root of 6909542748 is about 1904.6555038703.

The spelling of 6909542748 in words is "six billion, nine hundred nine million, five hundred forty-two thousand, seven hundred forty-eight".