202840472769 has 32 divisors (see below), whose sum is σ = 305264764800. Its totient is φ = 118674984960.

The previous prime is 202840472761. The next prime is 202840472801. The reversal of 202840472769 is 967274048202.

It is not a de Polignac number, because 202840472769 - 2³ = 202840472761 is a prime.

It is a super-2 number, since 2×202840472769² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (202840472761) 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 in 31 ways as a sum of consecutive naturals, for example, 7478817 + ... + 7505889.

It is an arithmetic number, because the mean of its divisors is an integer number (9539523900).

Almost surely, 2^202840472769 is an apocalyptic number.

202840472769 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

202840472769 is a deficient number, since it is larger than the sum of its proper divisors (102424292031).

202840472769 is a wasteful number, since it uses less digits than its factorization.

202840472769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34945.

The product of its (nonzero) digits is 2709504, while the sum is 51.

The spelling of 202840472769 in words is "two hundred two billion, eight hundred forty million, four hundred seventy-two thousand, seven hundred sixty-nine".