67542237503 has 4 divisors (see below), whose sum is σ = 72737794248. Its totient is φ = 62346680760.

The previous prime is 67542237431. The next prime is 67542237541. The reversal of 67542237503 is 30573224576.

It is a happy number.

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

It is not a de Polignac number, because 67542237503 - 2³⁰ = 66468495679 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 (67542237593) 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, 2597778353 + ... + 2597778378.

It is an arithmetic number, because the mean of its divisors is an integer number (18184448562).

Almost surely, 2^67542237503 is an apocalyptic number.

67542237503 is a deficient number, since it is larger than the sum of its proper divisors (5195556745).

67542237503 is a wasteful number, since it uses less digits than its factorization.

67542237503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5195556744.

The product of its (nonzero) digits is 1058400, while the sum is 44.

The spelling of 67542237503 in words is "sixty-seven billion, five hundred forty-two million, two hundred thirty-seven thousand, five hundred three".