2453989689648 has 200 divisors, whose sum is σ = 8120836379040. Its totient is φ = 700826618880.

The previous prime is 2453989689647. The next prime is 2453989689659. The reversal of 2453989689648 is 8469869893542.

2453989689648 is a `hidden beast` number, since 2 + 4 + 5 + 398 + 96 + 89 + 64 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is not an unprimeable number, because it can be changed into a prime (2453989689643) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 20633938 + ... + 20752526.

Almost surely, 2^{2453989689648} is an apocalyptic number.

2453989689648 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2453989689648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4060418189520).

2453989689648 is an abundant number, since it is smaller than the sum of its proper divisors (5666846689392).

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

2453989689648 is a wasteful number, since it uses less digits than its factorization.

2453989689648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120897 (or 120882 counting only the distinct ones).

The product of its digits is 6449725440, while the sum is 81.

The spelling of 2453989689648 in words is "two trillion, four hundred fifty-three billion, nine hundred eighty-nine million, six hundred eighty-nine thousand, six hundred forty-eight".