618236858877 has 8 divisors (see below), whose sum is σ = 899253612960. Its totient is φ = 374689005360.

The previous prime is 618236858843. The next prime is 618236858881. The reversal of 618236858877 is 778858632816.

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

It is not a de Polignac number, because 618236858877 - 2²² = 618232664573 is a prime.

It is a super-2 number, since 2×618236858877² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618236858807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9367225102 + ... + 9367225167.

It is an arithmetic number, because the mean of its divisors is an integer number (112406701620).

Almost surely, 2^618236858877 is an apocalyptic number.

It is an amenable number.

618236858877 is a deficient number, since it is larger than the sum of its proper divisors (281016754083).

618236858877 is a wasteful number, since it uses less digits than its factorization.

618236858877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18734450283.

The product of its digits is 216760320, while the sum is 69.

The spelling of 618236858877 in words is "six hundred eighteen billion, two hundred thirty-six million, eight hundred fifty-eight thousand, eight hundred seventy-seven".