7876425644 has 6 divisors (see below), whose sum is σ = 13783744884. Its totient is φ = 3938212820.

The previous prime is 7876425643. The next prime is 7876425649. The reversal of 7876425644 is 4465246787.

It is not an unprimeable number, because it can be changed into a prime (7876425643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 984553202 + ... + 984553209.

It is an arithmetic number, because the mean of its divisors is an integer number (2297290814).

Almost surely, 2^7876425644 is an apocalyptic number.

It is an amenable number.

7876425644 is a deficient number, since it is larger than the sum of its proper divisors (5907319240).

7876425644 is a wasteful number, since it uses less digits than its factorization.

7876425644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1969106415 (or 1969106413 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 53.

The square root of 7876425644 is about 88749.2289769325. The cubic root of 7876425644 is about 1989.6486542498.

The spelling of 7876425644 in words is "seven billion, eight hundred seventy-six million, four hundred twenty-five thousand, six hundred forty-four".