40122434215 has 4 divisors (see below), whose sum is σ = 48146921064. Its totient is φ = 32097947368.

The previous prime is 40122434207. The next prime is 40122434267. The reversal of 40122434215 is 51243422104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40122434215 - 2³ = 40122434207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4012243417 + ... + 4012243426.

It is an arithmetic number, because the mean of its divisors is an integer number (12036730266).

Almost surely, 2^40122434215 is an apocalyptic number.

40122434215 is a deficient number, since it is larger than the sum of its proper divisors (8024486849).

40122434215 is an equidigital number, since it uses as much as digits as its factorization.

40122434215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8024486848.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 40122434215 its reverse (51243422104), we get a palindrome (91365856319).

The spelling of 40122434215 in words is "forty billion, one hundred twenty-two million, four hundred thirty-four thousand, two hundred fifteen".