1146621678 has 16 divisors (see below), whose sum is σ = 2428140240. Its totient is φ = 359724416.

The previous prime is 1146621667. The next prime is 1146621713. The reversal of 1146621678 is 8761266411.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5620593 + ... + 5620796.

It is an arithmetic number, because the mean of its divisors is an integer number (151758765).

Almost surely, 2^1146621678 is an apocalyptic number.

1146621678 is an abundant number, since it is smaller than the sum of its proper divisors (1281518562).

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

1146621678 is a wasteful number, since it uses less digits than its factorization.

1146621678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11241411.

The product of its digits is 96768, while the sum is 42.

The square root of 1146621678 is about 33861.8026395524. The cubic root of 1146621678 is about 1046.6626244091.

The spelling of 1146621678 in words is "one billion, one hundred forty-six million, six hundred twenty-one thousand, six hundred seventy-eight".