140308491977 has 8 divisors (see below), whose sum is σ = 140931329760. Its totient is φ = 139685831200.

The previous prime is 140308491959. The next prime is 140308491979. The reversal of 140308491977 is 779194803041.

It is a happy number.

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 140308491977 - 2²⁸ = 140040056521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140308491979) 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, 1695674 + ... + 1776492.

It is an arithmetic number, because the mean of its divisors is an integer number (17616416220).

Almost surely, 2^140308491977 is an apocalyptic number.

It is an amenable number.

140308491977 is a deficient number, since it is larger than the sum of its proper divisors (622837783).

140308491977 is an equidigital number, since it uses as much as digits as its factorization.

140308491977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88503.

The product of its (nonzero) digits is 1524096, while the sum is 53.

The spelling of 140308491977 in words is "one hundred forty billion, three hundred eight million, four hundred ninety-one thousand, nine hundred seventy-seven".