6425889390 has 48 divisors (see below), whose sum is σ = 16731934128. Its totient is φ = 1711045248.

The previous prime is 6425889373. The next prime is 6425889391. The reversal of 6425889390 is 939885246.

It is a super-3 number, since 3×6425889390³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6425889391) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9202 + ... + 113738.

It is an arithmetic number, because the mean of its divisors is an integer number (348581961).

Almost surely, 2^6425889390 is an apocalyptic number.

6425889390 is an abundant number, since it is smaller than the sum of its proper divisors (10306044738).

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

6425889390 is a wasteful number, since it uses less digits than its factorization.

6425889390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105233 (or 105230 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The square root of 6425889390 is about 80161.6453798199. The cubic root of 6425889390 is about 1859.1356632704.

The spelling of 6425889390 in words is "six billion, four hundred twenty-five million, eight hundred eighty-nine thousand, three hundred ninety".