618861274 has 16 divisors (see below), whose sum is σ = 977820480. Its totient is φ = 292943520.

The previous prime is 618861259. The next prime is 618861301. The reversal of 618861274 is 472168816.

It is a self number, because there is not a number n which added to its sum of digits gives 618861274.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60667 + ... + 70129.

It is an arithmetic number, because the mean of its divisors is an integer number (61113780).

Almost surely, 2^618861274 is an apocalyptic number.

618861274 is a deficient number, since it is larger than the sum of its proper divisors (358959206).

618861274 is a wasteful number, since it uses less digits than its factorization.

618861274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11205.

The product of its digits is 129024, while the sum is 43.

The square root of 618861274 is about 24876.9225186718. The cubic root of 618861274 is about 852.1795387102.

The spelling of 618861274 in words is "six hundred eighteen million, eight hundred sixty-one thousand, two hundred seventy-four".