2109770728054 has 16 divisors (see below), whose sum is σ = 3466797096960. Its totient is φ = 954974195560.

The previous prime is 2109770727949. The next prime is 2109770728081. The reversal of 2109770728054 is 4508270779012.

It is a super-2 number, since 2×2109770728054² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2109770727992 and 2109770728010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200619574 + ... + 200630089.

It is an arithmetic number, because the mean of its divisors is an integer number (216674818560).

Almost surely, 2^{2109770728054} is an apocalyptic number.

2109770728054 is a deficient number, since it is larger than the sum of its proper divisors (1357026368906).

2109770728054 is a wasteful number, since it uses less digits than its factorization.

2109770728054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401249915.

The product of its (nonzero) digits is 1975680, while the sum is 52.

The spelling of 2109770728054 in words is "two trillion, one hundred nine billion, seven hundred seventy million, seven hundred twenty-eight thousand, fifty-four".