42763017523 has 4 divisors (see below), whose sum is σ = 45278489160. Its totient is φ = 40247545888.

The previous prime is 42763017509. The next prime is 42763017529. The reversal of 42763017523 is 32571036724.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42763017523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42763017529) 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, 1257735793 + ... + 1257735826.

It is an arithmetic number, because the mean of its divisors is an integer number (11319622290).

Almost surely, 2^42763017523 is an apocalyptic number.

42763017523 is a deficient number, since it is larger than the sum of its proper divisors (2515471637).

42763017523 is a wasteful number, since it uses less digits than its factorization.

42763017523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2515471636.

The product of its (nonzero) digits is 211680, while the sum is 40.

It can be divided in two parts, 4276301 and 7523, that added together give a palindrome (4283824).

The spelling of 42763017523 in words is "forty-two billion, seven hundred sixty-three million, seventeen thousand, five hundred twenty-three".