6907221131 has 16 divisors (see below), whose sum is σ = 7289688960. Its totient is φ = 6534702720.

The previous prime is 6907221127. The next prime is 6907221133. The reversal of 6907221131 is 1311227096.

It is a cyclic number.

It is not a de Polignac number, because 6907221131 - 2² = 6907221127 is a prime.

It is a super-2 number, since 2×6907221131² = 95419407505065838322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6907221133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1397741 + ... + 1402673.

It is an arithmetic number, because the mean of its divisors is an integer number (455605560).

Almost surely, 2^6907221131 is an apocalyptic number.

6907221131 is a deficient number, since it is larger than the sum of its proper divisors (382467829).

6907221131 is a wasteful number, since it uses less digits than its factorization.

6907221131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5926.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 6907221131 is about 83109.6933636504. The cubic root of 6907221131 is about 1904.4421575798.

The spelling of 6907221131 in words is "six billion, nine hundred seven million, two hundred twenty-one thousand, one hundred thirty-one".