6401532850 has 12 divisors (see below), whose sum is σ = 11906851194. Its totient is φ = 2560613120.

The previous prime is 6401532817. The next prime is 6401532871. The reversal of 6401532850 is 582351046.

It can be written as a sum of positive squares in 3 ways, for example, as 4785734041 + 1615798809 = 69179^2 + 40197^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64015279 + ... + 64015378.

Almost surely, 2^6401532850 is an apocalyptic number.

6401532850 is a deficient number, since it is larger than the sum of its proper divisors (5505318344).

6401532850 is a wasteful number, since it uses less digits than its factorization.

6401532850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128030669 (or 128030664 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 6401532850 is about 80009.5797389288. The cubic root of 6401532850 is about 1856.7837478513.

Adding to 6401532850 its reverse (582351046), we get a palindrome (6983883896).

The spelling of 6401532850 in words is "six billion, four hundred one million, five hundred thirty-two thousand, eight hundred fifty".