678080454756583 has 4 divisors (see below), whose sum is σ = 680894066602288. Its totient is φ = 675266842910880.

The previous prime is 678080454756581. The next prime is 678080454756643. The reversal of 678080454756583 is 385657454080876.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 678080454756583 - 2¹ = 678080454756581 is a prime.

It is a super-3 number, since 3×678080454756583³ (a number of 45 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678080454756581) 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, 1406805922491 + ... + 1406805922972.

It is an arithmetic number, because the mean of its divisors is an integer number (170223516650572).

Almost surely, 2^{678080454756583} is an apocalyptic number.

678080454756583 is a deficient number, since it is larger than the sum of its proper divisors (2813611845705).

678080454756583 is a wasteful number, since it uses less digits than its factorization.

678080454756583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2813611845704.

The product of its (nonzero) digits is 5419008000, while the sum is 76.

The spelling of 678080454756583 in words is "six hundred seventy-eight trillion, eighty billion, four hundred fifty-four million, seven hundred fifty-six thousand, five hundred eighty-three".