249346991900 has 18 divisors (see below), whose sum is σ = 541082972640. Its totient is φ = 99738796720.

The previous prime is 249346991899. The next prime is 249346991953. The reversal of 249346991900 is 9199643942.

249346991900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×249346991900² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1246734860 + ... + 1246735059.

Almost surely, 2^249346991900 is an apocalyptic number.

249346991900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

249346991900 is an abundant number, since it is smaller than the sum of its proper divisors (291735980740).

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

249346991900 is a wasteful number, since it uses less digits than its factorization.

249346991900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2493469933 (or 2493469926 counting only the distinct ones).

The product of its (nonzero) digits is 3779136, while the sum is 56.

The spelling of 249346991900 in words is "two hundred forty-nine billion, three hundred forty-six million, nine hundred ninety-one thousand, nine hundred".