378128472250 has 32 divisors (see below), whose sum is σ = 708406255440. Its totient is φ = 151133920000.

The previous prime is 378128472233. The next prime is 378128472307. The reversal of 378128472250 is 52274821873.

It can be written as a sum of positive squares in 8 ways, for example, as 129407831289 + 248720640961 = 359733^2 + 498719^2 .

It is a super-2 number, since 2×378128472250² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 378128472194 and 378128472203.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 264451 + ... + 908950.

Almost surely, 2^378128472250 is an apocalyptic number.

378128472250 is a deficient number, since it is larger than the sum of its proper divisors (330277783190).

378128472250 is a wasteful number, since it uses less digits than its factorization.

378128472250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174707 (or 1174697 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 49.

The spelling of 378128472250 in words is "three hundred seventy-eight billion, one hundred twenty-eight million, four hundred seventy-two thousand, two hundred fifty".