2180364746956 has 48 divisors (see below), whose sum is σ = 4301300441088. Its totient is φ = 958097750400.

The previous prime is 2180364746953. The next prime is 2180364746983. The reversal of 2180364746956 is 6596474630812.

It is a super-2 number, since 2×2180364746956² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2180364746894 and 2180364746903.

It is not an unprimeable number, because it can be changed into a prime (2180364746953) 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, 461221 + ... + 2138563.

It is an arithmetic number, because the mean of its divisors is an integer number (89610425856).

It is a 1-persistent number, because it is pandigital, but 2⋅2180364746956 = 4360729493912 is not.

Almost surely, 2^{2180364746956} is an apocalyptic number.

It is an amenable number.

2180364746956 is a deficient number, since it is larger than the sum of its proper divisors (2120935694132).

2180364746956 is a wasteful number, since it uses less digits than its factorization.

2180364746956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678342 (or 1678340 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 61.

The spelling of 2180364746956 in words is "two trillion, one hundred eighty billion, three hundred sixty-four million, seven hundred forty-six thousand, nine hundred fifty-six".