1001640076947 has 12 divisors (see below), whose sum is σ = 1485916511040. Its totient is φ = 649712482128.

The previous prime is 1001640076933. The next prime is 1001640077051. The reversal of 1001640076947 is 7496700461001.

It is not a de Polignac number, because 1001640076947 - 2⁸ = 1001640076691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1001640076247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1503963747 + ... + 1503964412.

It is an arithmetic number, because the mean of its divisors is an integer number (123826375920).

Almost surely, 2^{1001640076947} is an apocalyptic number.

1001640076947 is a deficient number, since it is larger than the sum of its proper divisors (484276434093).

1001640076947 is a wasteful number, since it uses less digits than its factorization.

1001640076947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3007928202 (or 3007928199 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The spelling of 1001640076947 in words is "one trillion, one billion, six hundred forty million, seventy-six thousand, nine hundred forty-seven".