40726121535 has 24 divisors (see below), whose sum is σ = 77009394384. Its totient is φ = 19745998080.

The previous prime is 40726121521. The next prime is 40726121561. The reversal of 40726121535 is 53512162704.

40726121535 is a `hidden beast` number, since 4 + 0 + 7 + 2 + 612 + 1 + 5 + 35 = 666.

It is not a de Polignac number, because 40726121535 - 2⁵ = 40726121503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40726121535.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41137002 + ... + 41137991.

It is an arithmetic number, because the mean of its divisors is an integer number (3208724766).

Almost surely, 2^40726121535 is an apocalyptic number.

40726121535 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40726121535 is a deficient number, since it is larger than the sum of its proper divisors (36283272849).

40726121535 is a wasteful number, since it uses less digits than its factorization.

40726121535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82275015 (or 82275012 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

It can be divided in two parts, 40726 and 121535, that added together give a palindrome (162261).

The spelling of 40726121535 in words is "forty billion, seven hundred twenty-six million, one hundred twenty-one thousand, five hundred thirty-five".