72757871870478 has 16 divisors (see below), whose sum is σ = 145517739868416. Its totient is φ = 24252291268920.

The previous prime is 72757871870461. The next prime is 72757871870531. The reversal of 72757871870478 is 87407817875727.

72757871870478 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×72757871870478³ (a number of 43 digits) contains 333 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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82697926 + ... + 83573097.

It is an arithmetic number, because the mean of its divisors is an integer number (9094858741776).

Almost surely, 2^{72757871870478} is an apocalyptic number.

72757871870478 is an abundant number, since it is smaller than the sum of its proper divisors (72759867997938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72757871870478 is a wasteful number, since it uses less digits than its factorization.

72757871870478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166343959.

The product of its (nonzero) digits is 2409451520, while the sum is 78.

The spelling of 72757871870478 in words is "seventy-two trillion, seven hundred fifty-seven billion, eight hundred seventy-one million, eight hundred seventy thousand, four hundred seventy-eight".