84258407525 has 24 divisors (see below), whose sum is σ = 106741691904. Its totient is φ = 65948875200.

The previous prime is 84258407489. The next prime is 84258407533. The reversal of 84258407525 is 52570485248.

It is not a de Polignac number, because 84258407525 - 2⁶ = 84258407461 is a prime.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3726404 + ... + 3748946.

It is an arithmetic number, because the mean of its divisors is an integer number (4447570496).

Almost surely, 2^84258407525 is an apocalyptic number.

It is an amenable number.

84258407525 is a deficient number, since it is larger than the sum of its proper divisors (22483284379).

84258407525 is a wasteful number, since it uses less digits than its factorization.

84258407525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25781 (or 25776 counting only the distinct ones).

The product of its (nonzero) digits is 3584000, while the sum is 50.

The spelling of 84258407525 in words is "eighty-four billion, two hundred fifty-eight million, four hundred seven thousand, five hundred twenty-five".