7985497471 has 8 divisors (see below), whose sum is σ = 9348875424. Its totient is φ = 6677767680.

The previous prime is 7985497469. The next prime is 7985497501. The reversal of 7985497471 is 1747945897.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7985497471 - 2¹ = 7985497469 is a prime.

It is a super-3 number, since 3×7985497471³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7985497411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13911730 + ... + 13912303.

It is an arithmetic number, because the mean of its divisors is an integer number (1168609428).

Almost surely, 2^7985497471 is an apocalyptic number.

7985497471 is a deficient number, since it is larger than the sum of its proper divisors (1363377953).

7985497471 is a wasteful number, since it uses less digits than its factorization.

7985497471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27824081.

The product of its digits is 17781120, while the sum is 61.

The square root of 7985497471 is about 89361.6107229497. The cubic root of 7985497471 is about 1998.7907248909.

The spelling of 7985497471 in words is "seven billion, nine hundred eighty-five million, four hundred ninety-seven thousand, four hundred seventy-one".