40997419013 has 4 divisors (see below), whose sum is σ = 41092101708. Its totient is φ = 40902736320.

The previous prime is 40997418989. The next prime is 40997419069. The reversal of 40997419013 is 31091479904.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24805620004 + 16191799009 = 157498^2 + 127247^2 .

It is a cyclic number.

It is not a de Polignac number, because 40997419013 - 2⁸ = 40997418757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40997419213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47340698 + ... + 47341563.

It is an arithmetic number, because the mean of its divisors is an integer number (10273025427).

Almost surely, 2^40997419013 is an apocalyptic number.

It is an amenable number.

40997419013 is a deficient number, since it is larger than the sum of its proper divisors (94682695).

40997419013 is an equidigital number, since it uses as much as digits as its factorization.

40997419013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94682694.

The product of its (nonzero) digits is 244944, while the sum is 47.

The spelling of 40997419013 in words is "forty billion, nine hundred ninety-seven million, four hundred nineteen thousand, thirteen".