618988139354 has 32 divisors (see below), whose sum is σ = 1077035387904. Its totient is φ = 264450637440.

The previous prime is 618988139353. The next prime is 618988139453. The reversal of 618988139354 is 453931889816.

It is not an unprimeable number, because it can be changed into a prime (618988139353) 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, 16676579 + ... + 16713654.

It is an arithmetic number, because the mean of its divisors is an integer number (33657355872).

Almost surely, 2^618988139354 is an apocalyptic number.

618988139354 is a deficient number, since it is larger than the sum of its proper divisors (458047248550).

618988139354 is a wasteful number, since it uses less digits than its factorization.

618988139354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33390302.

The product of its digits is 44789760, while the sum is 65.

The spelling of 618988139354 in words is "six hundred eighteen billion, nine hundred eighty-eight million, one hundred thirty-nine thousand, three hundred fifty-four".