20193097662409 has 16 divisors (see below), whose sum is σ = 24294945758080. Its totient is φ = 16395716839680.

The previous prime is 20193097662379. The next prime is 20193097662427. The reversal of 20193097662409 is 90426679039102.

It is a cyclic number.

It is not a de Polignac number, because 20193097662409 - 2¹³ = 20193097654217 is a prime.

It is a super-2 number, since 2×20193097662409² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20193097662499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6505152 + ... + 9094129.

It is an arithmetic number, because the mean of its divisors is an integer number (1518434109880).

Almost surely, 2^{20193097662409} is an apocalyptic number.

It is an amenable number.

20193097662409 is a deficient number, since it is larger than the sum of its proper divisors (4101848095671).

20193097662409 is a wasteful number, since it uses less digits than its factorization.

20193097662409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15609040.

The product of its (nonzero) digits is 8817984, while the sum is 58.

The spelling of 20193097662409 in words is "twenty trillion, one hundred ninety-three billion, ninety-seven million, six hundred sixty-two thousand, four hundred nine".