40121613511 has 12 divisors (see below), whose sum is σ = 49128507480. Its totient is φ = 32579956080.

The previous prime is 40121613451. The next prime is 40121613523. The reversal of 40121613511 is 11531612104.

It is not a de Polignac number, because 40121613511 - 2¹⁵ = 40121580743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40121613211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21546660 + ... + 21548521.

It is an arithmetic number, because the mean of its divisors is an integer number (4094042290).

Almost surely, 2^40121613511 is an apocalyptic number.

40121613511 is a deficient number, since it is larger than the sum of its proper divisors (9006893969).

40121613511 is a wasteful number, since it uses less digits than its factorization.

40121613511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43095214 (or 43095207 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The spelling of 40121613511 in words is "forty billion, one hundred twenty-one million, six hundred thirteen thousand, five hundred eleven".