1429990613257 has 2 divisors, whose sum is σ = 1429990613258. Its totient is φ = 1429990613256.

The previous prime is 1429990613239. The next prime is 1429990613281. The reversal of 1429990613257 is 7523160999241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1184231474176 + 245759139081 = 1088224^2 + 495741^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1429990613257 is a prime.

It is not a weakly prime, because it can be changed into another prime (1429990613297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714995306628 + 714995306629.

It is an arithmetic number, because the mean of its divisors is an integer number (714995306629).

Almost surely, 2^{1429990613257} is an apocalyptic number.

It is an amenable number.

1429990613257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1429990613257 is an equidigital number, since it uses as much as digits as its factorization.

1429990613257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7348320, while the sum is 58.

The spelling of 1429990613257 in words is "one trillion, four hundred twenty-nine billion, nine hundred ninety million, six hundred thirteen thousand, two hundred fifty-seven".