33400673407 has 2 divisors, whose sum is σ = 33400673408. Its totient is φ = 33400673406.

The previous prime is 33400673389. The next prime is 33400673413. The reversal of 33400673407 is 70437600433.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33400673407 is a prime.

It is a super-2 number, since 2×33400673407² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33400673497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16700336703 + 16700336704.

It is an arithmetic number, because the mean of its divisors is an integer number (16700336704).

Almost surely, 2^33400673407 is an apocalyptic number.

33400673407 is a deficient number, since it is larger than the sum of its proper divisors (1).

33400673407 is an equidigital number, since it uses as much as digits as its factorization.

33400673407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 37.

The spelling of 33400673407 in words is "thirty-three billion, four hundred million, six hundred seventy-three thousand, four hundred seven".