6453398560 has 192 divisors, whose sum is σ = 18705883392. Its totient is φ = 2053472256.

The previous prime is 6453398551. The next prime is 6453398573. The reversal of 6453398560 is 658933546.

It is a happy number.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1387599 + ... + 1392241.

It is an arithmetic number, because the mean of its divisors is an integer number (97426476).

Almost surely, 2^6453398560 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 6453398560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9352941696).

6453398560 is an abundant number, since it is smaller than the sum of its proper divisors (12252484832).

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

6453398560 is a wasteful number, since it uses less digits than its factorization.

6453398560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4755 (or 4747 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 49.

The square root of 6453398560 is about 80333.0477449972. The cubic root of 6453398560 is about 1861.7848670200.

The spelling of 6453398560 in words is "six billion, four hundred fifty-three million, three hundred ninety-eight thousand, five hundred sixty".