84403521825 has 48 divisors (see below), whose sum is σ = 159552466560. Its totient is φ = 38567531520.

The previous prime is 84403521821. The next prime is 84403521877. The reversal of 84403521825 is 52812530448.

It is not a de Polignac number, because 84403521825 - 2² = 84403521821 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84403521821) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1203321 + ... + 1271529.

It is an arithmetic number, because the mean of its divisors is an integer number (3324009720).

Almost surely, 2^84403521825 is an apocalyptic number.

It is an amenable number.

84403521825 is a deficient number, since it is larger than the sum of its proper divisors (75148944735).

84403521825 is a wasteful number, since it uses less digits than its factorization.

84403521825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70586 (or 70581 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 42.

The spelling of 84403521825 in words is "eighty-four billion, four hundred three million, five hundred twenty-one thousand, eight hundred twenty-five".