618147517820457 has 16 divisors (see below), whose sum is σ = 872688504776832. Its totient is φ = 387852974488320.

The previous prime is 618147517820401. The next prime is 618147517820467. The reversal of 618147517820457 is 754028715741816.

It is not a de Polignac number, because 618147517820457 - 2⁸ = 618147517820201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (618147517820467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62398669 + ... + 71623242.

It is an arithmetic number, because the mean of its divisors is an integer number (54543031548552).

Almost surely, 2^{618147517820457} is an apocalyptic number.

It is an amenable number.

618147517820457 is a deficient number, since it is larger than the sum of its proper divisors (254540986956375).

618147517820457 is a wasteful number, since it uses less digits than its factorization.

618147517820457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134112368.

The product of its (nonzero) digits is 105369600, while the sum is 66.

The spelling of 618147517820457 in words is "six hundred eighteen trillion, one hundred forty-seven billion, five hundred seventeen million, eight hundred twenty thousand, four hundred fifty-seven".