140440969770 has 64 divisors (see below), whose sum is σ = 337750560000. Its totient is φ = 37374105600.

The previous prime is 140440969763. The next prime is 140440969777. The reversal of 140440969770 is 77969044041.

It is an interprime number because it is at equal distance from previous prime (140440969763) and next prime (140440969777).

It is not an unprimeable number, because it can be changed into a prime (140440969777) 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 31 ways as a sum of consecutive naturals, for example, 38255035 + ... + 38258705.

It is an arithmetic number, because the mean of its divisors is an integer number (5277352500).

Almost surely, 2^140440969770 is an apocalyptic number.

140440969770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140440969770 is an abundant number, since it is smaller than the sum of its proper divisors (197309590230).

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

140440969770 is a wasteful number, since it uses less digits than its factorization.

140440969770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5951.

The product of its (nonzero) digits is 1524096, while the sum is 51.

The spelling of 140440969770 in words is "one hundred forty billion, four hundred forty million, nine hundred sixty-nine thousand, seven hundred seventy".