1010000999490 has 256 divisors, whose sum is σ = 2855723433984. Its totient is φ = 223863091200.

The previous prime is 1010000999489. The next prime is 1010000999521. The reversal of 1010000999490 is 949990000101.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 469112254 + ... + 469114406.

It is an arithmetic number, because the mean of its divisors is an integer number (11155169664).

Almost surely, 2^{1010000999490} is an apocalyptic number.

1010000999490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1010000999490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1427861716992).

1010000999490 is an abundant number, since it is smaller than the sum of its proper divisors (1845722434494).

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

1010000999490 is a wasteful number, since it uses less digits than its factorization.

1010000999490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2745.

The product of its (nonzero) digits is 26244, while the sum is 42.

Adding to 1010000999490 its reverse (949990000101), we get a palindrome (1959990999591).

The spelling of 1010000999490 in words is "one trillion, ten billion, nine hundred ninety-nine thousand, four hundred ninety".