33972317147 has 2 divisors, whose sum is σ = 33972317148. Its totient is φ = 33972317146.

The previous prime is 33972317131. The next prime is 33972317189. The reversal of 33972317147 is 74171327933.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 33972317147 - 2⁴ = 33972317131 is a prime.

It is not a weakly prime, because it can be changed into another prime (33972317117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16986158573 + 16986158574.

It is an arithmetic number, because the mean of its divisors is an integer number (16986158574).

Almost surely, 2^33972317147 is an apocalyptic number.

33972317147 is a deficient number, since it is larger than the sum of its proper divisors (1).

33972317147 is an equidigital number, since it uses as much as digits as its factorization.

33972317147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 666792, while the sum is 47.

The spelling of 33972317147 in words is "thirty-three billion, nine hundred seventy-two million, three hundred seventeen thousand, one hundred forty-seven".