33406740407 has 2 divisors, whose sum is σ = 33406740408. Its totient is φ = 33406740406.

The previous prime is 33406740391. The next prime is 33406740439. The reversal of 33406740407 is 70404760433.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 33406740407 - 2⁴ = 33406740391 is a prime.

It is a super-2 number, since 2×33406740407² (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 (33406740457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16703370203 + 16703370204.

It is an arithmetic number, because the mean of its divisors is an integer number (16703370204).

Almost surely, 2^33406740407 is an apocalyptic number.

33406740407 is a deficient number, since it is larger than the sum of its proper divisors (1).

33406740407 is an equidigital number, since it uses as much as digits as its factorization.

33406740407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 38.

The spelling of 33406740407 in words is "thirty-three billion, four hundred six million, seven hundred forty thousand, four hundred seven".