7944820462 has 4 divisors (see below), whose sum is σ = 11917230696. Its totient is φ = 3972410230.

The previous prime is 7944820459. The next prime is 7944820463. The reversal of 7944820462 is 2640284497.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7944820463) 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 as a sum of consecutive naturals, namely, 1986205114 + ... + 1986205117.

It is an arithmetic number, because the mean of its divisors is an integer number (2979307674).

Almost surely, 2^7944820462 is an apocalyptic number.

7944820462 is a deficient number, since it is larger than the sum of its proper divisors (3972410234).

7944820462 is a wasteful number, since it uses less digits than its factorization.

7944820462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3972410233.

The product of its (nonzero) digits is 774144, while the sum is 46.

The square root of 7944820462 is about 89133.7223614048. The cubic root of 7944820462 is about 1995.3910923102.

The spelling of 7944820462 in words is "seven billion, nine hundred forty-four million, eight hundred twenty thousand, four hundred sixty-two".