40760681947 has 4 divisors (see below), whose sum is σ = 40767084160. Its totient is φ = 40754279736.

The previous prime is 40760681891. The next prime is 40760681977. The reversal of 40760681947 is 74918606704.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40760681947 is a prime.

It is a super-2 number, since 2×40760681947² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40760681894 and 40760681903.

It is not an unprimeable number, because it can be changed into a prime (40760681977) 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, 3191547 + ... + 3204292.

It is an arithmetic number, because the mean of its divisors is an integer number (10191771040).

Almost surely, 2^40760681947 is an apocalyptic number.

40760681947 is a deficient number, since it is larger than the sum of its proper divisors (6402213).

40760681947 is an equidigital number, since it uses as much as digits as its factorization.

40760681947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6402212.

The product of its (nonzero) digits is 2032128, while the sum is 52.

The spelling of 40760681947 in words is "forty billion, seven hundred sixty million, six hundred eighty-one thousand, nine hundred forty-seven".