72061855514 has 8 divisors (see below), whose sum is σ = 117919399968. Its totient is φ = 32755388860.

The previous prime is 72061855513. The next prime is 72061855517. The reversal of 72061855514 is 41555816027.

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

It is a super-2 number, since 2×72061855514² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72061855513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1637769422 + ... + 1637769465.

It is an arithmetic number, because the mean of its divisors is an integer number (14739924996).

Almost surely, 2^72061855514 is an apocalyptic number.

72061855514 is a deficient number, since it is larger than the sum of its proper divisors (45857544454).

72061855514 is a wasteful number, since it uses less digits than its factorization.

72061855514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3275538900.

The product of its (nonzero) digits is 336000, while the sum is 44.

The spelling of 72061855514 in words is "seventy-two billion, sixty-one million, eight hundred fifty-five thousand, five hundred fourteen".