40502230243251 has 32 divisors (see below), whose sum is σ = 62695946165760. Its totient is φ = 22777913131776.

The previous prime is 40502230243219. The next prime is 40502230243261. The reversal of 40502230243251 is 15234203220504.

It is not a de Polignac number, because 40502230243251 - 2⁵ = 40502230243219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40502230243261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11576956 + ... + 14663913.

It is an arithmetic number, because the mean of its divisors is an integer number (1959248317680).

Almost surely, 2^{40502230243251} is an apocalyptic number.

40502230243251 is a deficient number, since it is larger than the sum of its proper divisors (22193715922509).

40502230243251 is a wasteful number, since it uses less digits than its factorization.

40502230243251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26242043.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 40502230243251 its reverse (15234203220504), we get a palindrome (55736433463755).

The spelling of 40502230243251 in words is "forty trillion, five hundred two billion, two hundred thirty million, two hundred forty-three thousand, two hundred fifty-one".