2126498643280 has 40 divisors (see below), whose sum is σ = 5393573833824. Its totient is φ = 773272233600.

The previous prime is 2126498643277. The next prime is 2126498643289. The reversal of 2126498643280 is 823468946212.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (55) 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 (55).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126498643289) 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, 1208236986 + ... + 1208238745.

Almost surely, 2^{2126498643280} is an apocalyptic number.

2126498643280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2126498643280 is an abundant number, since it is smaller than the sum of its proper divisors (3267075190544).

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

2126498643280 is a wasteful number, since it uses less digits than its factorization.

2126498643280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2416475755 (or 2416475749 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 55.

The spelling of 2126498643280 in words is "two trillion, one hundred twenty-six billion, four hundred ninety-eight million, six hundred forty-three thousand, two hundred eighty".