7109861397 has 16 divisors (see below), whose sum is σ = 10049225472. Its totient is φ = 4455856640.

The previous prime is 7109861383. The next prime is 7109861401. The reversal of 7109861397 is 7931689017.

It is a cyclic number.

It is not a de Polignac number, because 7109861397 - 2⁸ = 7109861141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7109861327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37629 + ... + 125042.

It is an arithmetic number, because the mean of its divisors is an integer number (628076592).

Almost surely, 2^7109861397 is an apocalyptic number.

It is an amenable number.

7109861397 is a deficient number, since it is larger than the sum of its proper divisors (2939364075).

7109861397 is a wasteful number, since it uses less digits than its factorization.

7109861397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163548.

The product of its (nonzero) digits is 571536, while the sum is 51.

The square root of 7109861397 is about 84319.9940524191. The cubic root of 7109861397 is about 1922.8867704993.

The spelling of 7109861397 in words is "seven billion, one hundred nine million, eight hundred sixty-one thousand, three hundred ninety-seven".