72057229078 has 16 divisors (see below), whose sum is σ = 115076130624. Its totient is φ = 33721937280.

The previous prime is 72057229021. The next prime is 72057229093. The reversal of 72057229078 is 87092275027.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5848350 + ... + 5860657.

It is an arithmetic number, because the mean of its divisors is an integer number (7192258164).

Almost surely, 2^72057229078 is an apocalyptic number.

72057229078 is a deficient number, since it is larger than the sum of its proper divisors (43018901546).

72057229078 is a wasteful number, since it uses less digits than its factorization.

72057229078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11709207.

The product of its (nonzero) digits is 987840, while the sum is 49.

The spelling of 72057229078 in words is "seventy-two billion, fifty-seven million, two hundred twenty-nine thousand, seventy-eight".