40035321613 has 8 divisors (see below), whose sum is σ = 46818715328. Its totient is φ = 33517943424.

The previous prime is 40035321581. The next prime is 40035321637. The reversal of 40035321613 is 31612353004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40035321613 - 2⁵ = 40035321581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40035321643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66503556 + ... + 66504157.

It is an arithmetic number, because the mean of its divisors is an integer number (5852339416).

Almost surely, 2^40035321613 is an apocalyptic number.

40035321613 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

40035321613 is a deficient number, since it is larger than the sum of its proper divisors (6783393715).

40035321613 is a wasteful number, since it uses less digits than its factorization.

40035321613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133007763.

The product of its (nonzero) digits is 6480, while the sum is 28.

Adding to 40035321613 its reverse (31612353004), we get a palindrome (71647674617).

The spelling of 40035321613 in words is "forty billion, thirty-five million, three hundred twenty-one thousand, six hundred thirteen".