72204137140173 has 8 divisors (see below), whose sum is σ = 96272395615968. Its totient is φ = 48135985045584.

The previous prime is 72204137140171. The next prime is 72204137140193. The reversal of 72204137140173 is 37104173140227.

It is a happy number.

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

It is not a de Polignac number, because 72204137140173 - 2¹ = 72204137140171 is a prime.

It is a super-2 number, since 2×72204137140173² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72204137140171) 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, 24997890 + ... + 27736307.

It is an arithmetic number, because the mean of its divisors is an integer number (12034049451996).

Almost surely, 2^{72204137140173} is an apocalyptic number.

It is an amenable number.

72204137140173 is a deficient number, since it is larger than the sum of its proper divisors (24068258475795).

72204137140173 is a wasteful number, since it uses less digits than its factorization.

72204137140173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53190603.

The product of its (nonzero) digits is 197568, while the sum is 42.

The spelling of 72204137140173 in words is "seventy-two trillion, two hundred four billion, one hundred thirty-seven million, one hundred forty thousand, one hundred seventy-three".