2134464021380 has 48 divisors (see below), whose sum is σ = 4747151280816. Its totient is φ = 803375370240.

The previous prime is 2134464021367. The next prime is 2134464021383. The reversal of 2134464021380 is 831204644312.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 83450498884 + 2051013522496 = 288878^2 + 1432136^2 .

It is not an unprimeable number, because it can be changed into a prime (2134464021383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 730490 + ... + 2191470.

It is an arithmetic number, because the mean of its divisors is an integer number (98898985017).

Almost surely, 2^{2134464021380} is an apocalyptic number.

2134464021380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is a pronic number, being equal to 1460980×1460981.

It is an amenable number.

2134464021380 is an abundant number, since it is smaller than the sum of its proper divisors (2612687259436).

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

2134464021380 is a wasteful number, since it uses less digits than its factorization.

2134464021380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465304 (or 1465302 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 38.

Adding to 2134464021380 its reverse (831204644312), we get a palindrome (2965668665692).

The spelling of 2134464021380 in words is "two trillion, one hundred thirty-four billion, four hundred sixty-four million, twenty-one thousand, three hundred eighty".