1429158729421 has 2 divisors, whose sum is σ = 1429158729422. Its totient is φ = 1429158729420.

The previous prime is 1429158729377. The next prime is 1429158729437. The reversal of 1429158729421 is 1249278519241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1428909436900 + 249292521 = 1195370^2 + 15789^2 .

It is a cyclic number.

It is not a de Polignac number, because 1429158729421 - 2²⁵ = 1429125174989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1429158729451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714579364710 + 714579364711.

It is an arithmetic number, because the mean of its divisors is an integer number (714579364711).

Almost surely, 2^{1429158729421} is an apocalyptic number.

It is an amenable number.

1429158729421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1429158729421 is an equidigital number, since it uses as much as digits as its factorization.

1429158729421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 55.

The spelling of 1429158729421 in words is "one trillion, four hundred twenty-nine billion, one hundred fifty-eight million, seven hundred twenty-nine thousand, four hundred twenty-one".