4155891054780 has 24 divisors (see below), whose sum is σ = 11636494953552. Its totient is φ = 1108237614592.

The previous prime is 4155891054779. The next prime is 4155891054803. The reversal of 4155891054780 is 874501985514.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4155891054780.

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, 34632425397 + ... + 34632425516.

It is an arithmetic number, because the mean of its divisors is an integer number (484853956398).

Almost surely, 2^{4155891054780} is an apocalyptic number.

It is an amenable number.

4155891054780 is an abundant number, since it is smaller than the sum of its proper divisors (7480603898772).

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

4155891054780 is a wasteful number, since it uses less digits than its factorization.

4155891054780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69264850925 (or 69264850923 counting only the distinct ones).

The product of its (nonzero) digits is 8064000, while the sum is 57.

The spelling of 4155891054780 in words is "four trillion, one hundred fifty-five billion, eight hundred ninety-one million, fifty-four thousand, seven hundred eighty".