6909610851 has 128 divisors (see below), whose sum is σ = 12773376000. Its totient is φ = 3629059200.

The previous prime is 6909610793. The next prime is 6909610871. The reversal of 6909610851 is 1580169096.

It is not a de Polignac number, because 6909610851 - 2⁶ = 6909610787 is a prime.

It is a super-2 number, since 2×6909610851² = 95485444224513888402, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6909610797 and 6909610806.

It is not an unprimeable number, because it can be changed into a prime (6909610871) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 9609670 + ... + 9610388.

It is an arithmetic number, because the mean of its divisors is an integer number (99792000).

Almost surely, 2^6909610851 is an apocalyptic number.

6909610851 is a deficient number, since it is larger than the sum of its proper divisors (5863765149).

6909610851 is a wasteful number, since it uses less digits than its factorization.

6909610851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902 (or 896 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 6909610851 is about 83124.0690233581. The cubic root of 6909610851 is about 1904.6617615119.

The spelling of 6909610851 in words is "six billion, nine hundred nine million, six hundred ten thousand, eight hundred fifty-one".