2170078376540 has 24 divisors (see below), whose sum is σ = 4574492223840. Its totient is φ = 864730849088.

The previous prime is 2170078376513. The next prime is 2170078376611. The reversal of 2170078376540 is 456738700712.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206275955 + ... + 206286474.

It is an arithmetic number, because the mean of its divisors is an integer number (190603842660).

Almost surely, 2^{2170078376540} is an apocalyptic number.

2170078376540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2170078376540 is an abundant number, since it is smaller than the sum of its proper divisors (2404413847300).

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

2170078376540 is a wasteful number, since it uses less digits than its factorization.

2170078376540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412562701 (or 412562699 counting only the distinct ones).

The product of its (nonzero) digits is 1975680, while the sum is 50.

The spelling of 2170078376540 in words is "two trillion, one hundred seventy billion, seventy-eight million, three hundred seventy-six thousand, five hundred forty".