1254465678 has 16 divisors (see below), whose sum is σ = 2618015616. Its totient is φ = 399974520.

The previous prime is 1254465677. The next prime is 1254465691. The reversal of 1254465678 is 8765644521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1254465677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4545028 + ... + 4545303.

It is an arithmetic number, because the mean of its divisors is an integer number (163625976).

Almost surely, 2^1254465678 is an apocalyptic number.

1254465678 is an abundant number, since it is smaller than the sum of its proper divisors (1363549938).

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

1254465678 is a wasteful number, since it uses less digits than its factorization.

1254465678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9090359.

The product of its digits is 1612800, while the sum is 48.

The square root of 1254465678 is about 35418.4369785003. The cubic root of 1254465678 is about 1078.4986219661.

The spelling of 1254465678 in words is "one billion, two hundred fifty-four million, four hundred sixty-five thousand, six hundred seventy-eight".