72742495237017 has 8 divisors (see below), whose sum is σ = 96990240220896. Its totient is φ = 48494873538912.

The previous prime is 72742495236953. The next prime is 72742495237031. The reversal of 72742495237017 is 71073259424727.

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 72742495237017 - 2⁶ = 72742495236953 is a prime.

It is a super-2 number, since 2×72742495237017² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72742495237817) 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, 29435803 + ... + 31811184.

It is an arithmetic number, because the mean of its divisors is an integer number (12123780027612).

Almost surely, 2^{72742495237017} is an apocalyptic number.

It is an amenable number.

72742495237017 is a deficient number, since it is larger than the sum of its proper divisors (24247744983879).

72742495237017 is a wasteful number, since it uses less digits than its factorization.

72742495237017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61642887.

The product of its (nonzero) digits is 41489280, while the sum is 60.

The spelling of 72742495237017 in words is "seventy-two trillion, seven hundred forty-two billion, four hundred ninety-five million, two hundred thirty-seven thousand, seventeen".