249546878680 has 32 divisors (see below), whose sum is σ = 612524157840. Its totient is φ = 90744319360.

The previous prime is 249546878663. The next prime is 249546878681. The reversal of 249546878680 is 86878645942.

249546878680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249546878681) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 283575559 + ... + 283576438.

Almost surely, 2^249546878680 is an apocalyptic number.

249546878680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

249546878680 is an abundant number, since it is smaller than the sum of its proper divisors (362977279160).

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

249546878680 is a wasteful number, since it uses less digits than its factorization.

249546878680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567152019 (or 567152015 counting only the distinct ones).

The product of its (nonzero) digits is 185794560, while the sum is 67.

The spelling of 249546878680 in words is "two hundred forty-nine billion, five hundred forty-six million, eight hundred seventy-eight thousand, six hundred eighty".