2678777454 has 8 divisors (see below), whose sum is σ = 5357554920. Its totient is φ = 892925816.

The previous prime is 2678777429. The next prime is 2678777459. The reversal of 2678777454 is 4547778762.

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

2678777454 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 2678777394 and 2678777403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2678777459) 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, 223231449 + ... + 223231460.

It is an arithmetic number, because the mean of its divisors is an integer number (669694365).

Almost surely, 2^2678777454 is an apocalyptic number.

2678777454 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2678777454 is a wasteful number, since it uses less digits than its factorization.

2678777454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446462914.

The product of its digits is 18439680, while the sum is 57.

The square root of 2678777454 is about 51756.9073071411. The cubic root of 2678777454 is about 1388.8186664267.

The spelling of 2678777454 in words is "two billion, six hundred seventy-eight million, seven hundred seventy-seven thousand, four hundred fifty-four".