40046200261 has 4 divisors (see below), whose sum is σ = 40077561132. Its totient is φ = 40014839392.

The previous prime is 40046200217. The next prime is 40046200309. The reversal of 40046200261 is 16200264004.

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 25446311361 + 14599888900 = 159519^2 + 120830^2 .

It is a cyclic number.

It is not a de Polignac number, because 40046200261 - 2⁷ = 40046200133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40046200661) 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, 15678520 + ... + 15681073.

It is an arithmetic number, because the mean of its divisors is an integer number (10019390283).

Almost surely, 2^40046200261 is an apocalyptic number.

It is an amenable number.

40046200261 is a deficient number, since it is larger than the sum of its proper divisors (31360871).

40046200261 is a wasteful number, since it uses less digits than its factorization.

40046200261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31360870.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 40046200261 its reverse (16200264004), we get a palindrome (56246464265).

The spelling of 40046200261 in words is "forty billion, forty-six million, two hundred thousand, two hundred sixty-one".