1368992077 has 16 divisors (see below), whose sum is σ = 1420975872. Its totient is φ = 1318139200.

The previous prime is 1368992021. The next prime is 1368992089. The reversal of 1368992077 is 7702998631.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1368992077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368992477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 820398 + ... + 822064.

It is an arithmetic number, because the mean of its divisors is an integer number (88810992).

Almost surely, 2^1368992077 is an apocalyptic number.

It is an amenable number.

1368992077 is a deficient number, since it is larger than the sum of its proper divisors (51983795).

1368992077 is a wasteful number, since it uses less digits than its factorization.

1368992077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988.

The product of its (nonzero) digits is 1143072, while the sum is 52.

The square root of 1368992077 is about 36999.8929322775. The cubic root of 1368992077 is about 1110.3681047889.

The spelling of 1368992077 in words is "one billion, three hundred sixty-eight million, nine hundred ninety-two thousand, seventy-seven".