618916954 has 8 divisors (see below), whose sum is σ = 935152308. Its totient is φ = 307199520.

The previous prime is 618916937. The next prime is 618916957. The reversal of 618916954 is 459619816.

It can be written as a sum of positive squares in 2 ways, for example, as 569538225 + 49378729 = 23865^2 + 7027^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 618916898 and 618916907.

It is not an unprimeable number, because it can be changed into a prime (618916957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1129137 + ... + 1129684.

Almost surely, 2^618916954 is an apocalyptic number.

618916954 is a deficient number, since it is larger than the sum of its proper divisors (316235354).

618916954 is a wasteful number, since it uses less digits than its factorization.

618916954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2258960.

The product of its digits is 466560, while the sum is 49.

The square root of 618916954 is about 24878.0416029880. The cubic root of 618916954 is about 852.2050952906.

The spelling of 618916954 in words is "six hundred eighteen million, nine hundred sixteen thousand, nine hundred fifty-four".