7401361818 has 16 divisors (see below), whose sum is σ = 14938529760. Its totient is φ = 2444486256.

The previous prime is 7401361771. The next prime is 7401361823. The reversal of 7401361818 is 8181631047.

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, 5657880 + ... + 5659187.

It is an arithmetic number, because the mean of its divisors is an integer number (933658110).

Almost surely, 2^7401361818 is an apocalyptic number.

7401361818 is an abundant number, since it is smaller than the sum of its proper divisors (7537167942).

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

7401361818 is a wasteful number, since it uses less digits than its factorization.

7401361818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11317181.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 7401361818 is about 86031.1677126377. The cubic root of 7401361818 is about 1948.8146921482.

The spelling of 7401361818 in words is "seven billion, four hundred one million, three hundred sixty-one thousand, eight hundred eighteen".