6494955390 has 384 divisors, whose sum is σ = 22212403200. Its totient is φ = 1303948800.

The previous prime is 6494955373. The next prime is 6494955407. The reversal of 6494955390 is 935594946.

6494955390 is a `hidden beast` number, since 6 + 49 + 49 + 553 + 9 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (6494955373) and next prime (6494955407).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 10526362 + ... + 10526978.

It is an arithmetic number, because the mean of its divisors is an integer number (57844800).

Almost surely, 2^6494955390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6494955390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11106201600).

6494955390 is an abundant number, since it is smaller than the sum of its proper divisors (15717447810).

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

6494955390 is a wasteful number, since it uses less digits than its factorization.

6494955390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693 (or 676 counting only the distinct ones).

The product of its (nonzero) digits is 5248800, while the sum is 54.

The square root of 6494955390 is about 80591.2860674155. The cubic root of 6494955390 is about 1865.7726569664.

The spelling of 6494955390 in words is "six billion, four hundred ninety-four million, nine hundred fifty-five thousand, three hundred ninety".