1018690329947 has 4 divisors (see below), whose sum is σ = 1018692355296. Its totient is φ = 1018688304600.

The previous prime is 1018690329941. The next prime is 1018690329949. The reversal of 1018690329947 is 7499230968101.

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

It is a cyclic number.

It is not a de Polignac number, because 1018690329947 - 2³⁴ = 1001510460763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1018690329941) 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, 382478 + ... + 1477724.

It is an arithmetic number, because the mean of its divisors is an integer number (254673088824).

Almost surely, 2^{1018690329947} is an apocalyptic number.

1018690329947 is a deficient number, since it is larger than the sum of its proper divisors (2025349).

1018690329947 is an equidigital number, since it uses as much as digits as its factorization.

1018690329947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2025348.

The product of its (nonzero) digits is 5878656, while the sum is 59.

The spelling of 1018690329947 in words is "one trillion, eighteen billion, six hundred ninety million, three hundred twenty-nine thousand, nine hundred forty-seven".