618749475 has 12 divisors (see below), whose sum is σ = 1022999256. Its totient is φ = 329999680.

The previous prime is 618749471. The next prime is 618749477. The reversal of 618749475 is 574947816.

It is not a de Polignac number, because 618749475 - 2² = 618749471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (618749471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4124922 + ... + 4125071.

It is an arithmetic number, because the mean of its divisors is an integer number (85249938).

Almost surely, 2^618749475 is an apocalyptic number.

618749475 is a deficient number, since it is larger than the sum of its proper divisors (404249781).

618749475 is a wasteful number, since it uses less digits than its factorization.

618749475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8250006 (or 8250001 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 51.

The square root of 618749475 is about 24874.6753747662. The cubic root of 618749475 is about 852.1282194233.

The spelling of 618749475 in words is "six hundred eighteen million, seven hundred forty-nine thousand, four hundred seventy-five".