1945255764 has 24 divisors (see below), whose sum is σ = 4539683008. Its totient is φ = 648311040.

The previous prime is 1945255759. The next prime is 1945255813. The reversal of 1945255764 is 4675525491.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100644 + ... + 118404.

Almost surely, 2^1945255764 is an apocalyptic number.

It is an amenable number.

1945255764 is an abundant number, since it is smaller than the sum of its proper divisors (2594427244).

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

1945255764 is a wasteful number, since it uses less digits than its factorization.

1945255764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26895 (or 26893 counting only the distinct ones).

The product of its digits is 1512000, while the sum is 48.

The square root of 1945255764 is about 44105.0537240348. The cubic root of 1945255764 is about 1248.3189699772.

The spelling of 1945255764 in words is "one billion, nine hundred forty-five million, two hundred fifty-five thousand, seven hundred sixty-four".