290149639488 has 112 divisors (see below), whose sum is σ = 853958891520. Its totient is φ = 96606259200.

The previous prime is 290149639471. The next prime is 290149639489. The reversal of 290149639488 is 884936941092.

290149639488 is a `hidden beast` number, since 2 + 9 + 0 + 149 + 6 + 3 + 9 + 488 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290149639489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1427073 + ... + 1617663.

It is an arithmetic number, because the mean of its divisors is an integer number (7624632960).

Almost surely, 2^290149639488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 290149639488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (426979445760).

290149639488 is an abundant number, since it is smaller than the sum of its proper divisors (563809252032).

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

290149639488 is a wasteful number, since it uses less digits than its factorization.

290149639488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191493 (or 191477 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 63.

The spelling of 290149639488 in words is "two hundred ninety billion, one hundred forty-nine million, six hundred thirty-nine thousand, four hundred eighty-eight".