33691121429049 has 168 divisors, whose sum is σ = 63303752406528. Its totient is φ = 17535067868160.

The previous prime is 33691121428969. The next prime is 33691121429113. The reversal of 33691121429049 is 94092412119633.

33691121429049 is a `hidden beast` number, since 3 + 3 + 6 + 91 + 121 + 429 + 0 + 4 + 9 = 666.

It is not a de Polignac number, because 33691121429049 - 2¹⁹ = 33691120904761 is a prime.

It is a super-2 number, since 2×33691121429049² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33691121428986 and 33691121429004.

It is not an unprimeable number, because it can be changed into a prime (33691121429149) by changing a digit.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 45349309 + ... + 46086245.

Almost surely, 2^{33691121429049} is an apocalyptic number.

It is an amenable number.

33691121429049 is a deficient number, since it is larger than the sum of its proper divisors (29612630977479).

33691121429049 is an equidigital number, since it uses as much as digits as its factorization.

33691121429049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737027 (or 736995 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 54.

The spelling of 33691121429049 in words is "thirty-three trillion, six hundred ninety-one billion, one hundred twenty-one million, four hundred twenty-nine thousand, forty-nine".