1194487976161 has 32 divisors (see below), whose sum is σ = 1283574988800. Its totient is φ = 1108194696000.

The previous prime is 1194487976131. The next prime is 1194487976173. The reversal of 1194487976161 is 1616797844911.

It is a cyclic number.

It is not a de Polignac number, because 1194487976161 - 2⁹ = 1194487975649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1194487976093 and 1194487976102.

It is not an unprimeable number, because it can be changed into a prime (1194487976131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 461012976 + ... + 461015566.

It is an arithmetic number, because the mean of its divisors is an integer number (40111718400).

Almost surely, 2^{1194487976161} is an apocalyptic number.

It is an amenable number.

1194487976161 is a deficient number, since it is larger than the sum of its proper divisors (89087012639).

1194487976161 is a wasteful number, since it uses less digits than its factorization.

1194487976161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4261.

The product of its digits is 18289152, while the sum is 64.

The spelling of 1194487976161 in words is "one trillion, one hundred ninety-four billion, four hundred eighty-seven million, nine hundred seventy-six thousand, one hundred sixty-one".