197499055010400 has 7776 divisors, whose sum is σ = 950858747145216. Its totient is φ = 39594147840000.

The previous prime is 197499055010399. The next prime is 197499055010449. The reversal of 197499055010400 is 4010550994791.

It is a happy number.

197499055010400 is a `hidden beast` number, since 1 + 9 + 7 + 4 + 9 + 90 + 5 + 501 + 0 + 40 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (7776).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 1295 ways as a sum of consecutive naturals, for example, 3237689426370 + ... + 3237689426430.

Almost surely, 2^{197499055010400} is an apocalyptic number.

197499055010400 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 197499055010400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (475429373572608).

197499055010400 is an abundant number, since it is smaller than the sum of its proper divisors (753359692134816).

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

197499055010400 is a wasteful number, since it uses less digits than its factorization.

197499055010400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 2041200, while the sum is 54.

The spelling of 197499055010400 in words is "one hundred ninety-seven trillion, four hundred ninety-nine billion, fifty-five million, ten thousand, four hundred".