2745780023959 has 16 divisors (see below), whose sum is σ = 3157904267776. Its totient is φ = 2338658632800.

The previous prime is 2745780023951. The next prime is 2745780023963. The reversal of 2745780023959 is 9593200875472.

It is not a de Polignac number, because 2745780023959 - 2³ = 2745780023951 is a prime.

It is a super-2 number, since 2×2745780023959² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2745780023897 and 2745780023906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2745780023951) 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, 541092 + ... + 2405065.

It is an arithmetic number, because the mean of its divisors is an integer number (197369016736).

Almost surely, 2^{2745780023959} is an apocalyptic number.

2745780023959 is a deficient number, since it is larger than the sum of its proper divisors (412124243817).

2745780023959 is a wasteful number, since it uses less digits than its factorization.

2745780023959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2947006.

The product of its (nonzero) digits is 38102400, while the sum is 61.

The spelling of 2745780023959 in words is "two trillion, seven hundred forty-five billion, seven hundred eighty million, twenty-three thousand, nine hundred fifty-nine".