202919400093 has 4 divisors (see below), whose sum is σ = 270559200128. Its totient is φ = 135279600060.

The previous prime is 202919400077. The next prime is 202919400161. The reversal of 202919400093 is 390004919202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 202919400093 - 2⁴ = 202919400077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202919400043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33819900013 + ... + 33819900018.

It is an arithmetic number, because the mean of its divisors is an integer number (67639800032).

Almost surely, 2^202919400093 is an apocalyptic number.

It is an amenable number.

202919400093 is a deficient number, since it is larger than the sum of its proper divisors (67639800035).

202919400093 is an equidigital number, since it uses as much as digits as its factorization.

202919400093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67639800034.

The product of its (nonzero) digits is 34992, while the sum is 39.

The spelling of 202919400093 in words is "two hundred two billion, nine hundred nineteen million, four hundred thousand, ninety-three".