84811492649 has 16 divisors (see below), whose sum is σ = 97094518080. Its totient is φ = 73432785600.

The previous prime is 84811492639. The next prime is 84811492651. The reversal of 84811492649 is 94629411848.

It is a cyclic number.

It is not a de Polignac number, because 84811492649 - 2²⁰ = 84810444073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84811492594 and 84811492603.

It is not an unprimeable number, because it can be changed into a prime (84811492639) 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, 1674887 + ... + 1724780.

It is an arithmetic number, because the mean of its divisors is an integer number (6068407380).

Almost surely, 2^84811492649 is an apocalyptic number.

It is an amenable number.

84811492649 is a deficient number, since it is larger than the sum of its proper divisors (12283025431).

84811492649 is a wasteful number, since it uses less digits than its factorization.

84811492649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3399800.

The product of its digits is 3981312, while the sum is 56.

The spelling of 84811492649 in words is "eighty-four billion, eight hundred eleven million, four hundred ninety-two thousand, six hundred forty-nine".