209296649764 has 24 divisors (see below), whose sum is σ = 377522738208. Its totient is φ = 101468539200.

The previous prime is 209296649687. The next prime is 209296649767. The reversal of 209296649764 is 467946692902.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 209296649696 and 209296649705.

It is not an unprimeable number, because it can be changed into a prime (209296649767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4417462 + ... + 4464589.

It is an arithmetic number, because the mean of its divisors is an integer number (15730114092).

Almost surely, 2^209296649764 is an apocalyptic number.

It is an amenable number.

209296649764 is a deficient number, since it is larger than the sum of its proper divisors (168226088444).

209296649764 is a wasteful number, since it uses less digits than its factorization.

209296649764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8882235 (or 8882233 counting only the distinct ones).

The product of its (nonzero) digits is 70543872, while the sum is 64.

The spelling of 209296649764 in words is "two hundred nine billion, two hundred ninety-six million, six hundred forty-nine thousand, seven hundred sixty-four".