7872749107 has 2 divisors, whose sum is σ = 7872749108. Its totient is φ = 7872749106.

The previous prime is 7872749081. The next prime is 7872749141. The reversal of 7872749107 is 7019472787.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7872749107 - 2⁷ = 7872748979 is a prime.

It is not a weakly prime, because it can be changed into another prime (7872759107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3936374553 + 3936374554.

It is an arithmetic number, because the mean of its divisors is an integer number (3936374554).

Almost surely, 2^7872749107 is an apocalyptic number.

7872749107 is a deficient number, since it is larger than the sum of its proper divisors (1).

7872749107 is an equidigital number, since it uses as much as digits as its factorization.

7872749107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1382976, while the sum is 52.

The square root of 7872749107 is about 88728.5134948174. The cubic root of 7872749107 is about 1989.3390317687.

The spelling of 7872749107 in words is "seven billion, eight hundred seventy-two million, seven hundred forty-nine thousand, one hundred seven".