2150649126990 has 576 divisors, whose sum is σ = 7498918103040. Its totient is φ = 439116007680.

The previous prime is 2150649126953. The next prime is 2150649127019. The reversal of 2150649126990 is 996219460512.

2150649126990 is a `hidden beast` number, since 2 + 1 + 5 + 0 + 6 + 491 + 2 + 69 + 90 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 47962801 + ... + 48007619.

It is an arithmetic number, because the mean of its divisors is an integer number (13018955040).

Almost surely, 2^{2150649126990} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2150649126990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3749459051520).

2150649126990 is an abundant number, since it is smaller than the sum of its proper divisors (5348268976050).

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

2150649126990 is a wasteful number, since it uses less digits than its factorization.

2150649126990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44899 (or 44880 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 54.

The spelling of 2150649126990 in words is "two trillion, one hundred fifty billion, six hundred forty-nine million, one hundred twenty-six thousand, nine hundred ninety".