72061753773455 has 8 divisors (see below), whose sum is σ = 87515961209712. Its totient is φ = 56954831897728.

The previous prime is 72061753773421. The next prime is 72061753773467. The reversal of 72061753773455 is 55437735716027.

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

It is a cyclic number.

It is not a de Polignac number, because 72061753773455 - 2¹² = 72061753769359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86821389674 + ... + 86821390503.

It is an arithmetic number, because the mean of its divisors is an integer number (10939495151214).

Almost surely, 2^{72061753773455} is an apocalyptic number.

72061753773455 is a deficient number, since it is larger than the sum of its proper divisors (15454207436257).

72061753773455 is a wasteful number, since it uses less digits than its factorization.

72061753773455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173642780265.

The product of its (nonzero) digits is 129654000, while the sum is 62.

The spelling of 72061753773455 in words is "seventy-two trillion, sixty-one billion, seven hundred fifty-three million, seven hundred seventy-three thousand, four hundred fifty-five".