140044477921 has 8 divisors (see below), whose sum is σ = 145448288640. Its totient is φ = 134741673168.

The previous prime is 140044477907. The next prime is 140044477933. The reversal of 140044477921 is 129774440041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140044477921 - 2⁹ = 140044477409 is a prime.

It is a super-2 number, since 2×140044477921² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140044477901) 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 7 ways as a sum of consecutive naturals, for example, 25248666 + ... + 25254211.

It is an arithmetic number, because the mean of its divisors is an integer number (18181036080).

Almost surely, 2^140044477921 is an apocalyptic number.

It is an amenable number.

140044477921 is a deficient number, since it is larger than the sum of its proper divisors (5403810719).

140044477921 is an equidigital number, since it uses as much as digits as its factorization.

140044477921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50502983.

The product of its (nonzero) digits is 225792, while the sum is 43.

The spelling of 140044477921 in words is "one hundred forty billion, forty-four million, four hundred seventy-seven thousand, nine hundred twenty-one".