84251009340 has 36 divisors (see below), whose sum is σ = 255561395544. Its totient is φ = 22466935776.

The previous prime is 84251009333. The next prime is 84251009341. The reversal of 84251009340 is 4390015248.

84251009340 is a `hidden beast` number, since 8 + 425 + 100 + 93 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 84251009295 and 84251009304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84251009341) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 234030402 + ... + 234030761.

It is an arithmetic number, because the mean of its divisors is an integer number (7098927654).

Almost surely, 2^84251009340 is an apocalyptic number.

It is an amenable number.

84251009340 is an abundant number, since it is smaller than the sum of its proper divisors (171310386204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84251009340 is a wasteful number, since it uses less digits than its factorization.

84251009340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468061178 (or 468061173 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 84251009340 in words is "eighty-four billion, two hundred fifty-one million, nine thousand, three hundred forty".