140780261287 has 2 divisors, whose sum is σ = 140780261288. Its totient is φ = 140780261286.

The previous prime is 140780261267. The next prime is 140780261291. The reversal of 140780261287 is 782162087041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140780261287 - 2⁷ = 140780261159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140780261207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70390130643 + 70390130644.

It is an arithmetic number, because the mean of its divisors is an integer number (70390130644).

Almost surely, 2^140780261287 is an apocalyptic number.

140780261287 is a deficient number, since it is larger than the sum of its proper divisors (1).

140780261287 is an equidigital number, since it uses as much as digits as its factorization.

140780261287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 301056, while the sum is 46.

The spelling of 140780261287 in words is "one hundred forty billion, seven hundred eighty million, two hundred sixty-one thousand, two hundred eighty-seven".