249648846942 has 32 divisors (see below), whose sum is σ = 544798638720. Its totient is φ = 75635853920.

The previous prime is 249648846929. The next prime is 249648846949.

249648846942 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249648846949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52092 + ... + 708527.

It is an arithmetic number, because the mean of its divisors is an integer number (17024957460).

Almost surely, 2^249648846942 is an apocalyptic number.

249648846942 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

249648846942 is an abundant number, since it is smaller than the sum of its proper divisors (295149791778).

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

249648846942 is a wasteful number, since it uses less digits than its factorization.

249648846942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765608.

The product of its digits is 191102976, while the sum is 66.

The spelling of 249648846942 in words is "two hundred forty-nine billion, six hundred forty-eight million, eight hundred forty-six thousand, nine hundred forty-two".