10426891017550 has 48 divisors (see below), whose sum is σ = 22191009684480. Its totient is φ = 3570673016160.

The previous prime is 10426891017533. The next prime is 10426891017563. The reversal of 10426891017550 is 5571019862401.

It is a junction number, because it is equal to n+sod(n) for n = 10426891017494 and 10426891017503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17460294 + ... + 18047593.

It is an arithmetic number, because the mean of its divisors is an integer number (462312701760).

Almost surely, 2^{10426891017550} is an apocalyptic number.

10426891017550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10426891017550 is an abundant number, since it is smaller than the sum of its proper divisors (11764118666930).

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

10426891017550 is a wasteful number, since it uses less digits than its factorization.

10426891017550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35508745 (or 35508740 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 49.

The spelling of 10426891017550 in words is "ten trillion, four hundred twenty-six billion, eight hundred ninety-one million, seventeen thousand, five hundred fifty".