2628497678 has 8 divisors (see below), whose sum is σ = 3943174440. Its totient is φ = 1314106200.

The previous prime is 2628497617. The next prime is 2628497743. The reversal of 2628497678 is 8767948262.

2628497678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46568 + ... + 86171.

It is an arithmetic number, because the mean of its divisors is an integer number (492896805).

Almost surely, 2^2628497678 is an apocalyptic number.

2628497678 is a deficient number, since it is larger than the sum of its proper divisors (1314676762).

2628497678 is a wasteful number, since it uses less digits than its factorization.

2628497678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142642.

The product of its digits is 16257024, while the sum is 59.

The square root of 2628497678 is about 51268.8763091215. The cubic root of 2628497678 is about 1380.0745037841.

The spelling of 2628497678 in words is "two billion, six hundred twenty-eight million, four hundred ninety-seven thousand, six hundred seventy-eight".