7214678655 has 16 divisors (see below), whose sum is σ = 11855472864. Its totient is φ = 3743832960.

The previous prime is 7214678591. The next prime is 7214678659. The reversal of 7214678655 is 5568764127.

It is not a de Polignac number, because 7214678655 - 2⁶ = 7214678591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7214678598 and 7214678607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7214678659) 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, 6499156 + ... + 6500265.

It is an arithmetic number, because the mean of its divisors is an integer number (740967054).

Almost surely, 2^7214678655 is an apocalyptic number.

7214678655 is a deficient number, since it is larger than the sum of its proper divisors (4640794209).

7214678655 is a wasteful number, since it uses less digits than its factorization.

7214678655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12999466.

The product of its digits is 2822400, while the sum is 51.

The square root of 7214678655 is about 84939.2645070582. The cubic root of 7214678655 is about 1932.2901086177.

The spelling of 7214678655 in words is "seven billion, two hundred fourteen million, six hundred seventy-eight thousand, six hundred fifty-five".