40710689649 has 18 divisors (see below), whose sum is σ = 68405037090. Its totient is φ = 23263250976.

The previous prime is 40710689647. The next prime is 40710689653. The reversal of 40710689649 is 94698601704.

40710689649 is a `hidden beast` number, since 407 + 106 + 8 + 96 + 49 = 666.

It can be written as a sum of positive squares in only one way, i.e., 40574850624 + 135839025 = 201432^2 + 11655^2 .

It is not a de Polignac number, because 40710689649 - 2¹ = 40710689647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40710689595 and 40710689604.

It is not an unprimeable number, because it can be changed into a prime (40710689647) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 46156804 + ... + 46157685.

Almost surely, 2^40710689649 is an apocalyptic number.

40710689649 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

40710689649 is a deficient number, since it is larger than the sum of its proper divisors (27694347441).

40710689649 is a wasteful number, since it uses less digits than its factorization.

40710689649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92314509 (or 92314499 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 40710689649 in words is "forty billion, seven hundred ten million, six hundred eighty-nine thousand, six hundred forty-nine".