618242157654 has 32 divisors (see below), whose sum is σ = 1349610128640. Its totient is φ = 187246365600.

The previous prime is 618242157649. The next prime is 618242157683. The reversal of 618242157654 is 456751242816.

It is a junction number, because it is equal to n+sod(n) for n = 618242157597 and 618242157606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2368617 + ... + 2616644.

It is an arithmetic number, because the mean of its divisors is an integer number (42175316520).

Almost surely, 2^618242157654 is an apocalyptic number.

618242157654 is an abundant number, since it is smaller than the sum of its proper divisors (731367970986).

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

618242157654 is a wasteful number, since it uses less digits than its factorization.

618242157654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4987156.

The product of its digits is 3225600, while the sum is 51.

The spelling of 618242157654 in words is "six hundred eighteen billion, two hundred forty-two million, one hundred fifty-seven thousand, six hundred fifty-four".