40064200049 has 4 divisors (see below), whose sum is σ = 40065192564. Its totient is φ = 40063207536.

The previous prime is 40064200021. The next prime is 40064200073. The reversal of 40064200049 is 94000246004.

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 27227310049 + 12836890000 = 165007^2 + 113300^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40064200049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40064199994 and 40064200030.

It is not an unprimeable number, because it can be changed into a prime (40064200009) 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, 433022 + ... + 517335.

It is an arithmetic number, because the mean of its divisors is an integer number (10016298141).

Almost surely, 2^40064200049 is an apocalyptic number.

It is an amenable number.

40064200049 is a deficient number, since it is larger than the sum of its proper divisors (992515).

40064200049 is an equidigital number, since it uses as much as digits as its factorization.

40064200049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992514.

The product of its (nonzero) digits is 6912, while the sum is 29.

The spelling of 40064200049 in words is "forty billion, sixty-four million, two hundred thousand, forty-nine".