40486649655 has 32 divisors (see below), whose sum is σ = 65433563136. Its totient is φ = 21375051264.

The previous prime is 40486649653. The next prime is 40486649747. The reversal of 40486649655 is 55694668404.

It is not a de Polignac number, because 40486649655 - 2¹ = 40486649653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40486649595 and 40486649604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40486649653) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1380474 + ... + 1409496.

It is an arithmetic number, because the mean of its divisors is an integer number (2044798848).

Almost surely, 2^40486649655 is an apocalyptic number.

40486649655 is a deficient number, since it is larger than the sum of its proper divisors (24946913481).

40486649655 is a wasteful number, since it uses less digits than its factorization.

40486649655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29967.

The product of its (nonzero) digits is 24883200, while the sum is 57.

The spelling of 40486649655 in words is "forty billion, four hundred eighty-six million, six hundred forty-nine thousand, six hundred fifty-five".