6455991363 has 8 divisors (see below), whose sum is σ = 8616182976. Its totient is φ = 4299897000.

The previous prime is 6455991343. The next prime is 6455991391. The reversal of 6455991363 is 3631995546.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6455991363 - 2²² = 6451797059 is a prime.

It is a super-4 number, since 4×6455991363⁴ (a number of 40 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (6455991343) 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, 1020633 + ... + 1026938.

It is an arithmetic number, because the mean of its divisors is an integer number (1077022872).

Almost surely, 2^6455991363 is an apocalyptic number.

6455991363 is a deficient number, since it is larger than the sum of its proper divisors (2160191613).

6455991363 is a wasteful number, since it uses less digits than its factorization.

6455991363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2048625.

The product of its digits is 2624400, while the sum is 51.

The square root of 6455991363 is about 80349.1839597640. The cubic root of 6455991363 is about 1862.0341720956.

The spelling of 6455991363 in words is "six billion, four hundred fifty-five million, nine hundred ninety-one thousand, three hundred sixty-three".