29997985542377 has 2 divisors, whose sum is σ = 29997985542378. Its totient is φ = 29997985542376.

The previous prime is 29997985542359. The next prime is 29997985542449. The reversal of 29997985542377 is 77324558979992.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29777713954816 + 220271587561 = 5456896^2 + 469331^2 .

It is a cyclic number.

It is not a de Polignac number, because 29997985542377 - 2¹⁴ = 29997985525993 is a prime.

It is not a weakly prime, because it can be changed into another prime (29997985542337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14998992771188 + 14998992771189.

It is an arithmetic number, because the mean of its divisors is an integer number (14998992771189).

Almost surely, 2^{29997985542377} is an apocalyptic number.

It is an amenable number.

29997985542377 is a deficient number, since it is larger than the sum of its proper divisors (1).

29997985542377 is an equidigital number, since it uses as much as digits as its factorization.

29997985542377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21604060800, while the sum is 86.

The spelling of 29997985542377 in words is "twenty-nine trillion, nine hundred ninety-seven billion, nine hundred eighty-five million, five hundred forty-two thousand, three hundred seventy-seven".