7245172018 has 16 divisors (see below), whose sum is σ = 12421491264. Its totient is φ = 3104774640.

The previous prime is 7245172001. The next prime is 7245172019. The reversal of 7245172018 is 8102715427.

It is not an unprimeable number, because it can be changed into a prime (7245172019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188821 + ... + 223927.

It is an arithmetic number, because the mean of its divisors is an integer number (776343204).

Almost surely, 2^7245172018 is an apocalyptic number.

7245172018 is a deficient number, since it is larger than the sum of its proper divisors (5176319246).

7245172018 is a wasteful number, since it uses less digits than its factorization.

7245172018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49857.

The product of its (nonzero) digits is 31360, while the sum is 37.

The square root of 7245172018 is about 85118.5762216451. The cubic root of 7245172018 is about 1935.0086037004.

The spelling of 7245172018 in words is "seven billion, two hundred forty-five million, one hundred seventy-two thousand, eighteen".