72254841601 has 4 divisors (see below), whose sum is σ = 72894265092. Its totient is φ = 71615418112.

The previous prime is 72254841587. The next prime is 72254841613. The reversal of 72254841601 is 10614845227.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36731639025 + 35523202576 = 191655^2 + 188476^2 .

It is a cyclic number.

It is not a de Polignac number, because 72254841601 - 2⁷ = 72254841473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72254841641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319711576 + ... + 319711801.

It is an arithmetic number, because the mean of its divisors is an integer number (18223566273).

Almost surely, 2^72254841601 is an apocalyptic number.

It is an amenable number.

72254841601 is a deficient number, since it is larger than the sum of its proper divisors (639423491).

72254841601 is a wasteful number, since it uses less digits than its factorization.

72254841601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639423490.

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 72254841601 in words is "seventy-two billion, two hundred fifty-four million, eight hundred forty-one thousand, six hundred one".