73558863381 has 8 divisors (see below), whose sum is σ = 98081140864. Its totient is φ = 49037914080.

The previous prime is 73558863331. The next prime is 73558863397. The reversal of 73558863381 is 18336885537.

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

It is not a de Polignac number, because 73558863381 - 2²² = 73554669077 is a prime.

It is a super-2 number, since 2×73558863381² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73558863311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194701 + ... + 430146.

It is an arithmetic number, because the mean of its divisors is an integer number (12260142608).

Almost surely, 2^73558863381 is an apocalyptic number.

It is an amenable number.

73558863381 is a deficient number, since it is larger than the sum of its proper divisors (24522277483).

73558863381 is a wasteful number, since it uses less digits than its factorization.

73558863381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664091.

The product of its digits is 14515200, while the sum is 57.

The spelling of 73558863381 in words is "seventy-three billion, five hundred fifty-eight million, eight hundred sixty-three thousand, three hundred eighty-one".