7647795220505 has 32 divisors (see below), whose sum is σ = 10039507365888. Its totient is φ = 5546566656000.

The previous prime is 7647795220391. The next prime is 7647795220589. The reversal of 7647795220505 is 5050225977467.

It is not a de Polignac number, because 7647795220505 - 2²² = 7647791026201 is a prime.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138516905 + ... + 138572105.

It is an arithmetic number, because the mean of its divisors is an integer number (313734605184).

Almost surely, 2^{7647795220505} is an apocalyptic number.

It is an amenable number.

7647795220505 is a deficient number, since it is larger than the sum of its proper divisors (2391712145383).

7647795220505 is a wasteful number, since it uses less digits than its factorization.

7647795220505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62177.

The product of its (nonzero) digits is 37044000, while the sum is 59.

The spelling of 7647795220505 in words is "seven trillion, six hundred forty-seven billion, seven hundred ninety-five million, two hundred twenty thousand, five hundred five".