2153420875340 has 48 divisors (see below), whose sum is σ = 5392914895872. Its totient is φ = 706215043776.

The previous prime is 2153420875339. The next prime is 2153420875357. The reversal of 2153420875340 is 435780243512.

It is a junction number, because it is equal to n+sod(n) for n = 2153420875291 and 2153420875300.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 334378904 + ... + 334385343.

It is an arithmetic number, because the mean of its divisors is an integer number (112352393664).

Almost surely, 2^{2153420875340} is an apocalyptic number.

2153420875340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2153420875340 is an abundant number, since it is smaller than the sum of its proper divisors (3239494020532).

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

2153420875340 is a wasteful number, since it uses less digits than its factorization.

2153420875340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668764286 (or 668764284 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 44.

The spelling of 2153420875340 in words is "two trillion, one hundred fifty-three billion, four hundred twenty million, eight hundred seventy-five thousand, three hundred forty".