7895021879 has 4 divisors (see below), whose sum is σ = 7983730080. Its totient is φ = 7806313680.

The previous prime is 7895021839. The next prime is 7895021891. The reversal of 7895021879 is 9781205987.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7895021879 - 2²⁴ = 7878244663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7895021809) 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 3 ways as a sum of consecutive naturals, for example, 44353967 + ... + 44354144.

It is an arithmetic number, because the mean of its divisors is an integer number (1995932520).

Almost surely, 2^7895021879 is an apocalyptic number.

7895021879 is a deficient number, since it is larger than the sum of its proper divisors (88708201).

7895021879 is an equidigital number, since it uses as much as digits as its factorization.

7895021879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88708200.

The product of its (nonzero) digits is 2540160, while the sum is 56.

The square root of 7895021879 is about 88853.9356415910. The cubic root of 7895021879 is about 1991.2132765280.

The spelling of 7895021879 in words is "seven billion, eight hundred ninety-five million, twenty-one thousand, eight hundred seventy-nine".