2646489139800 has 192 divisors, whose sum is σ = 9258564556800. Its totient is φ = 619449868800.

The previous prime is 2646489139757. The next prime is 2646489139813. The reversal of 2646489139800 is 89319846462.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6722104 + ... + 7104903.

It is an arithmetic number, because the mean of its divisors is an integer number (48221690400).

Almost surely, 2^{2646489139800} is an apocalyptic number.

2646489139800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2646489139800 is an abundant number, since it is smaller than the sum of its proper divisors (6612075417000).

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

2646489139800 is a wasteful number, since it uses less digits than its factorization.

2646489139800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13827066 (or 13827057 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 60.

The spelling of 2646489139800 in words is "two trillion, six hundred forty-six billion, four hundred eighty-nine million, one hundred thirty-nine thousand, eight hundred".