83881449290 has 8 divisors (see below), whose sum is σ = 150986608740. Its totient is φ = 33552579712.

The previous prime is 83881449269. The next prime is 83881449307. The reversal of 83881449290 is 9294418838.

It can be written as a sum of positive squares in 2 ways, for example, as 82553357041 + 1328092249 = 287321^2 + 36443^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4194072455 + ... + 4194072474.

Almost surely, 2^83881449290 is an apocalyptic number.

83881449290 is a deficient number, since it is larger than the sum of its proper divisors (67105159450).

83881449290 is a wasteful number, since it uses less digits than its factorization.

83881449290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8388144936.

The product of its (nonzero) digits is 3981312, while the sum is 56.

The spelling of 83881449290 in words is "eighty-three billion, eight hundred eighty-one million, four hundred forty-nine thousand, two hundred ninety".