140448781008 has 100 divisors (see below), whose sum is σ = 409467187140. Its totient is φ = 46474477056.

The previous prime is 140448781007. The next prime is 140448781027. The reversal of 140448781008 is 800187844041.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 103187427984 + 37261353024 = 321228^2 + 193032^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140448781007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 217963 + ... + 573066.

Almost surely, 2^140448781008 is an apocalyptic number.

140448781008 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

140448781008 is an abundant number, since it is smaller than the sum of its proper divisors (269018406132).

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

140448781008 is a wasteful number, since it uses less digits than its factorization.

140448781008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791186 (or 791171 counting only the distinct ones).

The product of its (nonzero) digits is 229376, while the sum is 45.

The spelling of 140448781008 in words is "one hundred forty billion, four hundred forty-eight million, seven hundred eighty-one thousand, eight".