140778033647 has 2 divisors, whose sum is σ = 140778033648. Its totient is φ = 140778033646.

The previous prime is 140778033611. The next prime is 140778033689. The reversal of 140778033647 is 746330877041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140778033647 - 2⁸ = 140778033391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140778033595 and 140778033604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140778033947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70389016823 + 70389016824.

It is an arithmetic number, because the mean of its divisors is an integer number (70389016824).

Almost surely, 2^140778033647 is an apocalyptic number.

140778033647 is a deficient number, since it is larger than the sum of its proper divisors (1).

140778033647 is an equidigital number, since it uses as much as digits as its factorization.

140778033647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2370816, while the sum is 50.

The spelling of 140778033647 in words is "one hundred forty billion, seven hundred seventy-eight million, thirty-three thousand, six hundred forty-seven".