40649237005 has 32 divisors (see below), whose sum is σ = 53888577120. Its totient is φ = 29244395520.

The previous prime is 40649236931. The next prime is 40649237017. The reversal of 40649237005 is 50073294604.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 18972858564 + 21676378441 = 137742^2 + 147229^2 .

It is not a de Polignac number, because 40649237005 - 2¹³ = 40649228813 is a prime.

It is a super-2 number, since 2×40649237005² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1943041 + ... + 1963849.

It is an arithmetic number, because the mean of its divisors is an integer number (1684018035).

Almost surely, 2^40649237005 is an apocalyptic number.

It is an amenable number.

40649237005 is a deficient number, since it is larger than the sum of its proper divisors (13239340115).

40649237005 is a wasteful number, since it uses less digits than its factorization.

40649237005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21601.

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 40649237005 in words is "forty billion, six hundred forty-nine million, two hundred thirty-seven thousand, five".