73542721363 has 8 divisors (see below), whose sum is σ = 74832665760. Its totient is φ = 72255497280.

The previous prime is 73542721337. The next prime is 73542721387. The reversal of 73542721363 is 36312724537.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73542721363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73542521363) 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 7 ways as a sum of consecutive naturals, for example, 625498 + ... + 733711.

It is an arithmetic number, because the mean of its divisors is an integer number (9354083220).

Almost surely, 2^73542721363 is an apocalyptic number.

73542721363 is a deficient number, since it is larger than the sum of its proper divisors (1289944397).

73542721363 is a wasteful number, since it uses less digits than its factorization.

73542721363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360157.

The product of its digits is 635040, while the sum is 43.

The spelling of 73542721363 in words is "seventy-three billion, five hundred forty-two million, seven hundred twenty-one thousand, three hundred sixty-three".