1026941897520 has 720 divisors, whose sum is σ = 4359394480896. Its totient is φ = 212060851200.

The previous prime is 1026941897461. The next prime is 1026941897539. The reversal of 1026941897520 is 257981496201.

It is a happy number.

1026941897520 is a `hidden beast` number, since 1 + 0 + 26 + 9 + 4 + 1 + 8 + 97 + 520 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

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 143 ways as a sum of consecutive naturals, for example, 99398755 + ... + 99409085.

Almost surely, 2^{1026941897520} is an apocalyptic number.

1026941897520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1026941897520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2179697240448).

1026941897520 is an abundant number, since it is smaller than the sum of its proper divisors (3332452583376).

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

1026941897520 is a wasteful number, since it uses less digits than its factorization.

1026941897520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10542 (or 10522 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 1026941897520 in words is "one trillion, twenty-six billion, nine hundred forty-one million, eight hundred ninety-seven thousand, five hundred twenty".