40028714121 has 32 divisors (see below), whose sum is σ = 59403912192. Its totient is φ = 23769287360.

The previous prime is 40028714119. The next prime is 40028714129. The reversal of 40028714121 is 12141782004.

It is not a de Polignac number, because 40028714121 - 2¹ = 40028714119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40028714129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1284106 + ... + 1314908.

It is an arithmetic number, because the mean of its divisors is an integer number (1856372256).

Almost surely, 2^40028714121 is an apocalyptic number.

It is an amenable number.

40028714121 is a deficient number, since it is larger than the sum of its proper divisors (19375198071).

40028714121 is a wasteful number, since it uses less digits than its factorization.

40028714121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31613.

The product of its (nonzero) digits is 3584, while the sum is 30.

The spelling of 40028714121 in words is "forty billion, twenty-eight million, seven hundred fourteen thousand, one hundred twenty-one".