1172491345576 has 16 divisors (see below), whose sum is σ = 2208021369300. Its totient is φ = 583685647104.

The previous prime is 1172491345559. The next prime is 1172491345621. The reversal of 1172491345576 is 6755431942711.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1163002637476 + 9488708100 = 1078426^2 + 97410^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320001265 + ... + 320004928.

Almost surely, 2^{1172491345576} is an apocalyptic number.

It is an amenable number.

1172491345576 is a deficient number, since it is larger than the sum of its proper divisors (1035530023724).

1172491345576 is a wasteful number, since it uses less digits than its factorization.

1172491345576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640006428 (or 640006424 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 55.

The spelling of 1172491345576 in words is "one trillion, one hundred seventy-two billion, four hundred ninety-one million, three hundred forty-five thousand, five hundred seventy-six".