7099891947 has 40 divisors (see below), whose sum is σ = 10743468032. Its totient is φ = 4672306800.

The previous prime is 7099891921. The next prime is 7099891949. The reversal of 7099891947 is 7491989907.

It is not a de Polignac number, because 7099891947 - 2²⁰ = 7098843371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7099891949) 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 39 ways as a sum of consecutive naturals, for example, 2168922 + ... + 2172192.

Almost surely, 2^7099891947 is an apocalyptic number.

7099891947 is a deficient number, since it is larger than the sum of its proper divisors (3643576085).

7099891947 is a wasteful number, since it uses less digits than its factorization.

7099891947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3621 (or 3612 counting only the distinct ones).

The product of its (nonzero) digits is 10287648, while the sum is 63.

The square root of 7099891947 is about 84260.8565527315. The cubic root of 7099891947 is about 1921.9875926041.

The spelling of 7099891947 in words is "seven billion, ninety-nine million, eight hundred ninety-one thousand, nine hundred forty-seven".