6461159478 has 16 divisors (see below), whose sum is σ = 12923108400. Its totient is φ = 2153588256.

The previous prime is 6461159473. The next prime is 6461159483. The reversal of 6461159478 is 8749511646.

It is an interprime number because it is at equal distance from previous prime (6461159473) and next prime (6461159483).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6461159478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6461159473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166248 + ... + 201396.

It is an arithmetic number, because the mean of its divisors is an integer number (807694275).

Almost surely, 2^6461159478 is an apocalyptic number.

6461159478 is an abundant number, since it is smaller than the sum of its proper divisors (6461948922).

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

6461159478 is a wasteful number, since it uses less digits than its factorization.

6461159478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65791.

The product of its digits is 1451520, while the sum is 51.

The square root of 6461159478 is about 80381.3378714239. The cubic root of 6461159478 is about 1862.5309013866.

The spelling of 6461159478 in words is "six billion, four hundred sixty-one million, one hundred fifty-nine thousand, four hundred seventy-eight".