67420502733 has 4 divisors (see below), whose sum is σ = 89894003648. Its totient is φ = 44947001820.

The previous prime is 67420502729. The next prime is 67420502789. The reversal of 67420502733 is 33720502476.

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 67420502733 - 2² = 67420502729 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67420502691 and 67420502700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67420502333) 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, 11236750453 + ... + 11236750458.

It is an arithmetic number, because the mean of its divisors is an integer number (22473500912).

Almost surely, 2^67420502733 is an apocalyptic number.

It is an amenable number.

67420502733 is a deficient number, since it is larger than the sum of its proper divisors (22473500915).

67420502733 is a wasteful number, since it uses less digits than its factorization.

67420502733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22473500914.

The product of its (nonzero) digits is 211680, while the sum is 39.

The spelling of 67420502733 in words is "sixty-seven billion, four hundred twenty million, five hundred two thousand, seven hundred thirty-three".