1179485909644 has 48 divisors (see below), whose sum is σ = 2405109688128. Its totient is φ = 495687333888.

The previous prime is 1179485909621. The next prime is 1179485909647. The reversal of 1179485909644 is 4469095849711.

It is a super-2 number, since 2×1179485909644² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1179485909644.

It is not an unprimeable number, because it can be changed into a prime (1179485909647) 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, 1314157 + ... + 2021380.

It is an arithmetic number, because the mean of its divisors is an integer number (50106451836).

Almost surely, 2^{1179485909644} is an apocalyptic number.

1179485909644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1179485909644 is an abundant number, since it is smaller than the sum of its proper divisors (1225623778484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1179485909644 is a wasteful number, since it uses less digits than its factorization.

1179485909644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3335794 (or 3335792 counting only the distinct ones).

The product of its (nonzero) digits is 78382080, while the sum is 67.

The spelling of 1179485909644 in words is "one trillion, one hundred seventy-nine billion, four hundred eighty-five million, nine hundred nine thousand, six hundred forty-four".