7278340067397 has 48 divisors (see below), whose sum is σ = 12710963200000. Its totient is φ = 3920354124192.

The previous prime is 7278340067389. The next prime is 7278340067461. The reversal of 7278340067397 is 7937600438727.

7278340067397 is a `hidden beast` number, since 7 + 2 + 7 + 83 + 400 + 67 + 3 + 97 = 666.

It is not a de Polignac number, because 7278340067397 - 2³ = 7278340067389 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7278340067377) 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, 15039397 + ... + 15515802.

Almost surely, 2^{7278340067397} is an apocalyptic number.

It is an amenable number.

7278340067397 is a deficient number, since it is larger than the sum of its proper divisors (5432623132603).

7278340067397 is a wasteful number, since it uses less digits than its factorization.

7278340067397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30555430 (or 30555427 counting only the distinct ones).

The product of its (nonzero) digits is 74680704, while the sum is 63.

The spelling of 7278340067397 in words is "seven trillion, two hundred seventy-eight billion, three hundred forty million, sixty-seven thousand, three hundred ninety-seven".