1925178912 has 72 divisors (see below), whose sum is σ = 5514228720. Its totient is φ = 637096320.

The previous prime is 1925178911. The next prime is 1925178953. The reversal of 1925178912 is 2198715291.

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (1925178911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15987 + ... + 64077.

It is an arithmetic number, because the mean of its divisors is an integer number (76586510).

Almost surely, 2^1925178912 is an apocalyptic number.

1925178912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1925178912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2757114360).

1925178912 is an abundant number, since it is smaller than the sum of its proper divisors (3589049808).

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

1925178912 is a wasteful number, since it uses less digits than its factorization.

1925178912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48246 (or 48235 counting only the distinct ones).

The product of its digits is 90720, while the sum is 45.

The square root of 1925178912 is about 43876.8607810541. The cubic root of 1925178912 is about 1244.0095049297.

The spelling of 1925178912 in words is "one billion, nine hundred twenty-five million, one hundred seventy-eight thousand, nine hundred twelve".