140425819477 has 2 divisors, whose sum is σ = 140425819478. Its totient is φ = 140425819476.

The previous prime is 140425819463. The next prime is 140425819483. The reversal of 140425819477 is 774918524041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100518166116 + 39907653361 = 317046^2 + 199769^2 .

It is a cyclic number.

It is not a de Polignac number, because 140425819477 - 2²³ = 140417430869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140425819277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70212909738 + 70212909739.

It is an arithmetic number, because the mean of its divisors is an integer number (70212909739).

Almost surely, 2^140425819477 is an apocalyptic number.

It is an amenable number.

140425819477 is a deficient number, since it is larger than the sum of its proper divisors (1).

140425819477 is an equidigital number, since it uses as much as digits as its factorization.

140425819477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2257920, while the sum is 52.

The spelling of 140425819477 in words is "one hundred forty billion, four hundred twenty-five million, eight hundred nineteen thousand, four hundred seventy-seven".