7870122147 has 4 divisors (see below), whose sum is σ = 10493496200. Its totient is φ = 5246748096.

The previous prime is 7870122133. The next prime is 7870122191. The reversal of 7870122147 is 7412210787.

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

It is not a de Polignac number, because 7870122147 - 2⁸ = 7870121891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7870122047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1311687022 + ... + 1311687027.

It is an arithmetic number, because the mean of its divisors is an integer number (2623374050).

Almost surely, 2^7870122147 is an apocalyptic number.

7870122147 is a deficient number, since it is larger than the sum of its proper divisors (2623374053).

7870122147 is a wasteful number, since it uses less digits than its factorization.

7870122147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2623374052.

The product of its (nonzero) digits is 43904, while the sum is 39.

The square root of 7870122147 is about 88713.7089011614. The cubic root of 7870122147 is about 1989.1177411980.

The spelling of 7870122147 in words is "seven billion, eight hundred seventy million, one hundred twenty-two thousand, one hundred forty-seven".