1902340459423 has 4 divisors (see below), whose sum is σ = 1902407290600. Its totient is φ = 1902273628248.

The previous prime is 1902340459391. The next prime is 1902340459451. The reversal of 1902340459423 is 3249540432091.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1902340459423 - 2⁵ = 1902340459391 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 (1902340459483) 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, 33372873 + ... + 33429826.

It is an arithmetic number, because the mean of its divisors is an integer number (475601822650).

Almost surely, 2^{1902340459423} is an apocalyptic number.

1902340459423 is a deficient number, since it is larger than the sum of its proper divisors (66831177).

1902340459423 is an equidigital number, since it uses as much as digits as its factorization.

1902340459423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66831176.

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 1902340459423 in words is "one trillion, nine hundred two billion, three hundred forty million, four hundred fifty-nine thousand, four hundred twenty-three".