13491645448050 has 1440 divisors, whose sum is σ = 49397750341632. Its totient is φ = 2667440160000.

The previous prime is 13491645447989. The next prime is 13491645448067. The reversal of 13491645448050 is 5084454619431.

13491645448050 is a `hidden beast` number, since 1 + 3 + 4 + 9 + 1 + 64 + 54 + 480 + 50 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 719 ways as a sum of consecutive naturals, for example, 21381371235 + ... + 21381371865.

Almost surely, 2^{13491645448050} is an apocalyptic number.

13491645448050 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 13491645448050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24698875170816).

13491645448050 is an abundant number, since it is smaller than the sum of its proper divisors (35906104893582).

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

13491645448050 is a wasteful number, since it uses less digits than its factorization.

13491645448050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978 (or 953 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 54.

The spelling of 13491645448050 in words is "thirteen trillion, four hundred ninety-one billion, six hundred forty-five million, four hundred forty-eight thousand, fifty".