7945555497 has 16 divisors (see below), whose sum is σ = 11617689600. Its totient is φ = 4790272400.

The previous prime is 7945555481. The next prime is 7945555507.

It is a happy number.

7945555497 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 7945555497 - 2⁴ = 7945555481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7945555497.

It is not an unprimeable number, because it can be changed into a prime (7945550497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 623997 + ... + 636602.

It is an arithmetic number, because the mean of its divisors is an integer number (726105600).

Almost surely, 2^7945555497 is an apocalyptic number.

It is an amenable number.

7945555497 is a deficient number, since it is larger than the sum of its proper divisors (3672134103).

7945555497 is a wasteful number, since it uses less digits than its factorization.

7945555497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260804.

The product of its digits is 39690000, while the sum is 60.

The square root of 7945555497 is about 89137.8454810301. The cubic root of 7945555497 is about 1995.4526266171.

The spelling of 7945555497 in words is "seven billion, nine hundred forty-five million, five hundred fifty-five thousand, four hundred ninety-seven".