1172554940019 has 4 divisors (see below), whose sum is σ = 1563406586696. Its totient is φ = 781703293344.

The previous prime is 1172554939943. The next prime is 1172554940027. The reversal of 1172554940019 is 9100494552711.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1172554940019 - 2⁸ = 1172554939763 is a prime.

It is a super-2 number, since 2×1172554940019² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1172554940019.

It is not an unprimeable number, because it can be changed into a prime (1172554940059) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 195425823334 + ... + 195425823339.

It is an arithmetic number, because the mean of its divisors is an integer number (390851646674).

Almost surely, 2^{1172554940019} is an apocalyptic number.

1172554940019 is a deficient number, since it is larger than the sum of its proper divisors (390851646677).

1172554940019 is an equidigital number, since it uses as much as digits as its factorization.

1172554940019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390851646676.

The product of its (nonzero) digits is 453600, while the sum is 48.

The spelling of 1172554940019 in words is "one trillion, one hundred seventy-two billion, five hundred fifty-four million, nine hundred forty thousand, nineteen".