1649198529400 has 192 divisors, whose sum is σ = 4325123174400. Its totient is φ = 581108520960.

The previous prime is 1649198529367. The next prime is 1649198529409. The reversal of 1649198529400 is 49258919461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1649198529409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5208009 + ... + 5515591.

It is an arithmetic number, because the mean of its divisors is an integer number (22526683200).

Almost surely, 2^{1649198529400} is an apocalyptic number.

1649198529400 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 1649198529400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2162561587200).

1649198529400 is an abundant number, since it is smaller than the sum of its proper divisors (2675924645000).

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

1649198529400 is a wasteful number, since it uses less digits than its factorization.

1649198529400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307718 (or 307709 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 58.

The spelling of 1649198529400 in words is "one trillion, six hundred forty-nine billion, one hundred ninety-eight million, five hundred twenty-nine thousand, four hundred".