1006687090631 has 4 divisors (see below), whose sum is σ = 1006701450264. Its totient is φ = 1006672731000.

The previous prime is 1006687090621. The next prime is 1006687090663. The reversal of 1006687090631 is 1360907866001.

It is a happy number.

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-1006687090631 is a prime.

It is a super-2 number, since 2×1006687090631² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1006687090621) 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, 7074140 + ... + 7215041.

It is an arithmetic number, because the mean of its divisors is an integer number (251675362566).

Almost surely, 2^{1006687090631} is an apocalyptic number.

1006687090631 is a deficient number, since it is larger than the sum of its proper divisors (14359633).

1006687090631 is an equidigital number, since it uses as much as digits as its factorization.

1006687090631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14359632.

The product of its (nonzero) digits is 326592, while the sum is 47.

The spelling of 1006687090631 in words is "one trillion, six billion, six hundred eighty-seven million, ninety thousand, six hundred thirty-one".