72974259505 has 8 divisors (see below), whose sum is σ = 100078984512. Its totient is φ = 50039492208.

The previous prime is 72974259473. The next prime is 72974259509. The reversal of 72974259505 is 50595247927.

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

It is a cyclic number.

It is not a de Polignac number, because 72974259505 - 2⁵ = 72974259473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72974259509) 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, 1042489387 + ... + 1042489456.

It is an arithmetic number, because the mean of its divisors is an integer number (12509873064).

Almost surely, 2^72974259505 is an apocalyptic number.

It is an amenable number.

72974259505 is a deficient number, since it is larger than the sum of its proper divisors (27104725007).

72974259505 is a wasteful number, since it uses less digits than its factorization.

72974259505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2084978855.

The product of its (nonzero) digits is 7938000, while the sum is 55.

The spelling of 72974259505 in words is "seventy-two billion, nine hundred seventy-four million, two hundred fifty-nine thousand, five hundred five".