140440851450 has 72 divisors (see below), whose sum is σ = 379850269500. Its totient is φ = 37199527680.

The previous prime is 140440851443. The next prime is 140440851491. The reversal of 140440851450 is 54158044041.

It can be written as a sum of positive squares in 6 ways, for example, as 56614967721 + 83825883729 = 237939^2 + 289527^2 .

It is a super-3 number, since 3×140440851450³ (a number of 34 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 980235 + ... + 1114334.

Almost surely, 2^140440851450 is an apocalyptic number.

140440851450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140440851450 is an abundant number, since it is smaller than the sum of its proper divisors (239409418050).

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

140440851450 is a wasteful number, since it uses less digits than its factorization.

140440851450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094736 (or 2094728 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

Adding to 140440851450 its reverse (54158044041), we get a palindrome (194598895491).

The spelling of 140440851450 in words is "one hundred forty billion, four hundred forty million, eight hundred fifty-one thousand, four hundred fifty".