72003764278 has 8 divisors (see below), whose sum is σ = 110517405768. Its totient is φ = 35164629024.

The previous prime is 72003764249. The next prime is 72003764291. The reversal of 72003764278 is 87246730027.

It is a happy number.

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

It is a super-2 number, since 2×72003764278² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 418626451 + ... + 418626622.

It is an arithmetic number, because the mean of its divisors is an integer number (13814675721).

Almost surely, 2^72003764278 is an apocalyptic number.

72003764278 is a deficient number, since it is larger than the sum of its proper divisors (38513641490).

72003764278 is a wasteful number, since it uses less digits than its factorization.

72003764278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837253118.

The product of its (nonzero) digits is 790272, while the sum is 46.

The spelling of 72003764278 in words is "seventy-two billion, three million, seven hundred sixty-four thousand, two hundred seventy-eight".