84925144447 has 16 divisors (see below), whose sum is σ = 99906605568. Its totient is φ = 71169850080.

The previous prime is 84925144399. The next prime is 84925144483. The reversal of 84925144447 is 74444152948.

It is a cyclic number.

It is not a de Polignac number, because 84925144447 - 2⁷ = 84925144319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84925144394 and 84925144403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84925141447) 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, 293403 + ... + 505900.

It is an arithmetic number, because the mean of its divisors is an integer number (6244162848).

Almost surely, 2^84925144447 is an apocalyptic number.

84925144447 is a deficient number, since it is larger than the sum of its proper divisors (14981461121).

84925144447 is a wasteful number, since it uses less digits than its factorization.

84925144447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800070.

The product of its digits is 5160960, while the sum is 52.

The spelling of 84925144447 in words is "eighty-four billion, nine hundred twenty-five million, one hundred forty-four thousand, four hundred forty-seven".