40709242718 has 64 divisors (see below), whose sum is σ = 67187957760.
Its totient is φ = 18427500000.
The previous prime is 40709242703. The next prime is 40709242757. The reversal of 40709242718 is 81724290704.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38733293 + ... + 38734343.
It is an arithmetic number, because the mean of its divisors is an integer number (1049811840).
Almost surely, 240709242718 is an apocalyptic number.
40709242718 is a deficient number, since it is larger than the sum of its proper divisors (26478715042).
40709242718 is a wasteful number, since it uses less digits than its factorization.
40709242718 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1485.
The product of its (nonzero) digits is 225792, while the sum is 44.
The spelling of 40709242718 in words is "forty billion, seven hundred nine million, two hundred forty-two thousand, seven hundred eighteen".