1081917699 has 16 divisors (see below), whose sum is σ = 1471475712. Its totient is φ = 706956768.

The previous prime is 1081917691. The next prime is 1081917787. The reversal of 1081917699 is 9967191801.

It is not a de Polignac number, because 1081917699 - 2³ = 1081917691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1081917691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14517 + ... + 48729.

It is an arithmetic number, because the mean of its divisors is an integer number (91967232).

Almost surely, 2^1081917699 is an apocalyptic number.

1081917699 is a deficient number, since it is larger than the sum of its proper divisors (389558013).

1081917699 is a wasteful number, since it uses less digits than its factorization.

1081917699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34426.

The product of its (nonzero) digits is 244944, while the sum is 51.

The square root of 1081917699 is about 32892.5173709766. The cubic root of 1081917699 is about 1026.5924717399.

The spelling of 1081917699 in words is "one billion, eighty-one million, nine hundred seventeen thousand, six hundred ninety-nine".