83781147270 has 32 divisors (see below), whose sum is σ = 201487673088. Its totient is φ = 22295759328.

The previous prime is 83781147227. The next prime is 83781147293. The reversal of 83781147270 is 7274118738.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2852644 + ... + 2881863.

It is an arithmetic number, because the mean of its divisors is an integer number (6296489784).

Almost surely, 2^83781147270 is an apocalyptic number.

83781147270 is an abundant number, since it is smaller than the sum of its proper divisors (117706525818).

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

83781147270 is a wasteful number, since it uses less digits than its factorization.

83781147270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5735004.

The product of its (nonzero) digits is 526848, while the sum is 48.

The spelling of 83781147270 in words is "eighty-three billion, seven hundred eighty-one million, one hundred forty-seven thousand, two hundred seventy".