84995712747 has 40 divisors (see below), whose sum is σ = 139656432432. Its totient is φ = 51512487840.

The previous prime is 84995712731. The next prime is 84995712749. The reversal of 84995712747 is 74721759948.

84995712747 is a `hidden beast` number, since 8 + 499 + 5 + 71 + 2 + 74 + 7 = 666.

It is not a de Polignac number, because 84995712747 - 2⁴ = 84995712731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84995712749) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 286378 + ... + 501999.

Almost surely, 2^84995712747 is an apocalyptic number.

84995712747 is a deficient number, since it is larger than the sum of its proper divisors (54660719685).

84995712747 is an equidigital number, since it uses as much as digits as its factorization.

84995712747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788422 (or 788391 counting only the distinct ones).

The product of its digits is 35562240, while the sum is 63.

The spelling of 84995712747 in words is "eighty-four billion, nine hundred ninety-five million, seven hundred twelve thousand, seven hundred forty-seven".