67492901489 has 18 divisors (see below), whose sum is σ = 74890562418. Its totient is φ = 60762124800.

The previous prime is 67492901447. The next prime is 67492901521. The reversal of 67492901489 is 98410929476.

It can be written as a sum of positive squares in 9 ways, for example, as 63210507889 + 4282393600 = 251417^2 + 65440^2 .

It is not a de Polignac number, because 67492901489 - 2²⁰ = 67491852913 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 (67492901419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 21623849 + ... + 21626969.

It is an arithmetic number, because the mean of its divisors is an integer number (4160586801).

Almost surely, 2^67492901489 is an apocalyptic number.

It is an amenable number.

67492901489 is a deficient number, since it is larger than the sum of its proper divisors (7397660929).

67492901489 is an frugal number, since it uses more digits than its factorization.

67492901489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6309 (or 3175 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 59.

The spelling of 67492901489 in words is "sixty-seven billion, four hundred ninety-two million, nine hundred one thousand, four hundred eighty-nine".