1880770645385 has 16 divisors (see below), whose sum is σ = 2263336154112. Its totient is φ = 1500343214400.

The previous prime is 1880770645381. The next prime is 1880770645499. The reversal of 1880770645385 is 5835460770881.

It is not a de Polignac number, because 1880770645385 - 2² = 1880770645381 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1880770645381) 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, 17177915 + ... + 17287055.

It is an arithmetic number, because the mean of its divisors is an integer number (141458509632).

Almost surely, 2^{1880770645385} is an apocalyptic number.

It is an amenable number.

1880770645385 is a deficient number, since it is larger than the sum of its proper divisors (382565508727).

1880770645385 is a wasteful number, since it uses less digits than its factorization.

1880770645385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118904.

The product of its (nonzero) digits is 45158400, while the sum is 62.

The spelling of 1880770645385 in words is "one trillion, eight hundred eighty billion, seven hundred seventy million, six hundred forty-five thousand, three hundred eighty-five".