7191799045 has 16 divisors (see below), whose sum is σ = 9153021312. Its totient is φ = 5413066560.

The previous prime is 7191799037. The next prime is 7191799057. The reversal of 7191799045 is 5409971917.

It is not a de Polignac number, because 7191799045 - 2³ = 7191799037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7191798983 and 7191799001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 505587 + ... + 519616.

It is an arithmetic number, because the mean of its divisors is an integer number (572063832).

Almost surely, 2^7191799045 is an apocalyptic number.

It is an amenable number.

7191799045 is a deficient number, since it is larger than the sum of its proper divisors (1961222267).

7191799045 is a wasteful number, since it uses less digits than its factorization.

7191799045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025292.

The product of its (nonzero) digits is 714420, while the sum is 52.

The square root of 7191799045 is about 84804.4753830834. The cubic root of 7191799045 is about 1930.2453485508.

The spelling of 7191799045 in words is "seven billion, one hundred ninety-one million, seven hundred ninety-nine thousand, forty-five".