72197527742 has 8 divisors (see below), whose sum is σ = 108300830736. Its totient is φ = 36097250832.

The previous prime is 72197527723. The next prime is 72197527793. The reversal of 72197527742 is 24772579127.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 695903 + ... + 792890.

It is an arithmetic number, because the mean of its divisors is an integer number (13537603842).

Almost surely, 2^72197527742 is an apocalyptic number.

72197527742 is a deficient number, since it is larger than the sum of its proper divisors (36103302994).

72197527742 is a wasteful number, since it uses less digits than its factorization.

72197527742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513042.

The product of its digits is 3457440, while the sum is 53.

The spelling of 72197527742 in words is "seventy-two billion, one hundred ninety-seven million, five hundred twenty-seven thousand, seven hundred forty-two".