1368191956 has 12 divisors (see below), whose sum is σ = 2394858592. Its totient is φ = 683946648.

The previous prime is 1368191953. The next prime is 1368191969. The reversal of 1368191956 is 6591918631.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368191953) 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, 15270 + ... + 54493.

Almost surely, 2^1368191956 is an apocalyptic number.

It is an amenable number.

1368191956 is a deficient number, since it is larger than the sum of its proper divisors (1026666636).

1368191956 is a wasteful number, since it uses less digits than its factorization.

1368191956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74670 (or 74668 counting only the distinct ones).

The product of its digits is 349920, while the sum is 49.

The square root of 1368191956 is about 36989.0788747165. The cubic root of 1368191956 is about 1110.1517407468.

The spelling of 1368191956 in words is "one billion, three hundred sixty-eight million, one hundred ninety-one thousand, nine hundred fifty-six".