49391196400 has 720 divisors, whose sum is σ = 158529020160. Its totient is φ = 14718412800.

The previous prime is 49391196397. The next prime is 49391196443. The reversal of 49391196400 is 469119394.

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 143 ways as a sum of consecutive naturals, for example, 1334897182 + ... + 1334897218.

Almost surely, 2^49391196400 is an apocalyptic number.

49391196400 is a gapful number since it is divisible by the number (40) 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 49391196400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79264510080).

49391196400 is an abundant number, since it is smaller than the sum of its proper divisors (109137823760).

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

49391196400 is a wasteful number, since it uses less digits than its factorization.

49391196400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 46.

The spelling of 49391196400 in words is "forty-nine billion, three hundred ninety-one million, one hundred ninety-six thousand, four hundred".