72325651642 has 8 divisors (see below), whose sum is σ = 109216588500. Its totient is φ = 35920122144.

The previous prime is 72325651639. The next prime is 72325651663. The reversal of 72325651642 is 24615652327.

It can be written as a sum of positive squares in 2 ways, for example, as 59331703561 + 12993948081 = 243581^2 + 113991^2 .

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

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, 121351467 + ... + 121352062.

Almost surely, 2^72325651642 is an apocalyptic number.

72325651642 is a deficient number, since it is larger than the sum of its proper divisors (36890936858).

72325651642 is a wasteful number, since it uses less digits than its factorization.

72325651642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242703680.

The product of its digits is 604800, while the sum is 43.

The spelling of 72325651642 in words is "seventy-two billion, three hundred twenty-five million, six hundred fifty-one thousand, six hundred forty-two".