6451963848 has 128 divisors (see below), whose sum is σ = 20225808000. Its totient is φ = 1887701760.

The previous prime is 6451963823. The next prime is 6451963849. The reversal of 6451963848 is 8483691546.

6451963848 is a `hidden beast` number, since 64 + 519 + 63 + 8 + 4 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 6451963794 and 6451963803.

It is not an unprimeable number, because it can be changed into a prime (6451963849) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22086 + ... + 115722.

It is an arithmetic number, because the mean of its divisors is an integer number (158014125).

Almost surely, 2^6451963848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6451963848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10112904000).

6451963848 is an abundant number, since it is smaller than the sum of its proper divisors (13773844152).

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

6451963848 is a wasteful number, since it uses less digits than its factorization.

6451963848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93692 (or 93682 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 54.

The square root of 6451963848 is about 80324.1174741435. The cubic root of 6451963848 is about 1861.6468868515.

It can be divided in two parts, 6451 and 963848, that added together give a cube (970299 = 99³).

The spelling of 6451963848 in words is "six billion, four hundred fifty-one million, nine hundred sixty-three thousand, eight hundred forty-eight".