1368938547 has 12 divisors (see below), whose sum is σ = 1996934784. Its totient is φ = 903589200.

The previous prime is 1368938531. The next prime is 1368938551. The reversal of 1368938547 is 7458398631.

1368938547 is a `hidden beast` number, since 1 + 3 + 6 + 8 + 93 + 8 + 547 = 666.

It is not a de Polignac number, because 1368938547 - 2⁴ = 1368938531 is a prime.

It is a super-3 number, since 3×1368938547³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1368938493 and 1368938502.

It is not an unprimeable number, because it can be changed into a prime (1368938047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 752083 + ... + 753900.

It is an arithmetic number, because the mean of its divisors is an integer number (166411232).

Almost surely, 2^1368938547 is an apocalyptic number.

1368938547 is a deficient number, since it is larger than the sum of its proper divisors (627996237).

1368938547 is a wasteful number, since it uses less digits than its factorization.

1368938547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506090 (or 1506087 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The square root of 1368938547 is about 36999.1695447344. The cubic root of 1368938547 is about 1110.3536321512.

The spelling of 1368938547 in words is "one billion, three hundred sixty-eight million, nine hundred thirty-eight thousand, five hundred forty-seven".