29956142303257 has 2 divisors, whose sum is σ = 29956142303258. Its totient is φ = 29956142303256.

The previous prime is 29956142303251. The next prime is 29956142303291. The reversal of 29956142303257 is 75230324165992.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29199444129801 + 756698173456 = 5403651^2 + 869884^2 .

It is a cyclic number.

It is not a de Polignac number, because 29956142303257 - 2³⁵ = 29921782564889 is a prime.

It is not a weakly prime, because it can be changed into another prime (29956142303251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14978071151628 + 14978071151629.

It is an arithmetic number, because the mean of its divisors is an integer number (14978071151629).

Almost surely, 2^{29956142303257} is an apocalyptic number.

It is an amenable number.

29956142303257 is a deficient number, since it is larger than the sum of its proper divisors (1).

29956142303257 is an equidigital number, since it uses as much as digits as its factorization.

29956142303257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24494400, while the sum is 58.

The spelling of 29956142303257 in words is "twenty-nine trillion, nine hundred fifty-six billion, one hundred forty-two million, three hundred three thousand, two hundred fifty-seven".