263230402453 has 4 divisors (see below), whose sum is σ = 264279129408. Its totient is φ = 262181675500.

The previous prime is 263230402411. The next prime is 263230402493. The reversal of 263230402453 is 354204032362.

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, and also an emirpimes, since its reverse is a distinct semiprime: 354204032362 = 2 ⋅177102016181.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-263230402453 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 (263230402493) 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, 524363101 + ... + 524363602.

It is an arithmetic number, because the mean of its divisors is an integer number (66069782352).

Almost surely, 2^263230402453 is an apocalyptic number.

It is an amenable number.

263230402453 is a deficient number, since it is larger than the sum of its proper divisors (1048726955).

263230402453 is a wasteful number, since it uses less digits than its factorization.

263230402453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048726954.

The product of its (nonzero) digits is 103680, while the sum is 34.

The spelling of 263230402453 in words is "two hundred sixty-three billion, two hundred thirty million, four hundred two thousand, four hundred fifty-three".