140787242447 has 12 divisors (see below), whose sum is σ = 143915160480. Its totient is φ = 137705127456.

The previous prime is 140787242417. The next prime is 140787242507. The reversal of 140787242447 is 744242787041.

It is not a de Polignac number, because 140787242447 - 2¹² = 140787238351 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140787242395 and 140787242404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140787242417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 826643 + ... + 982299.

It is an arithmetic number, because the mean of its divisors is an integer number (11992930040).

Almost surely, 2^140787242447 is an apocalyptic number.

140787242447 is a deficient number, since it is larger than the sum of its proper divisors (3127918033).

140787242447 is an equidigital number, since it uses as much as digits as its factorization.

140787242447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155950 (or 155843 counting only the distinct ones).

The product of its (nonzero) digits is 2809856, while the sum is 50.

The spelling of 140787242447 in words is "one hundred forty billion, seven hundred eighty-seven million, two hundred forty-two thousand, four hundred forty-seven".