1068773391 has 48 divisors (see below), whose sum is σ = 1928429568. Its totient is φ = 556243200.

The previous prime is 1068773369. The next prime is 1068773473. The reversal of 1068773391 is 1933778601.

It is not a de Polignac number, because 1068773391 - 2⁵ = 1068773359 is a prime.

It is a super-2 number, since 2×1068773391² = 2284553122619277762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1068773191) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17106 + ... + 49296.

It is an arithmetic number, because the mean of its divisors is an integer number (40175616).

Almost surely, 2^1068773391 is an apocalyptic number.

1068773391 is a deficient number, since it is larger than the sum of its proper divisors (859656177).

1068773391 is a wasteful number, since it uses less digits than its factorization.

1068773391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32252 (or 32249 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 1068773391 is about 32692.0998254930. The cubic root of 1068773391 is about 1022.4181352950.

The spelling of 1068773391 in words is "one billion, sixty-eight million, seven hundred seventy-three thousand, three hundred ninety-one".