1177728251004 has 48 divisors (see below), whose sum is σ = 3232979517600. Its totient is φ = 369483372288.

The previous prime is 1177728251003. The next prime is 1177728251009. The reversal of 1177728251004 is 4001528277711.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1177728251003) 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 15 ways as a sum of consecutive naturals, for example, 320730259 + ... + 320733930.

It is an arithmetic number, because the mean of its divisors is an integer number (67353739950).

Almost surely, 2^{1177728251004} is an apocalyptic number.

It is an amenable number.

1177728251004 is an abundant number, since it is smaller than the sum of its proper divisors (2055251266596).

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

1177728251004 is a wasteful number, since it uses less digits than its factorization.

1177728251004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641464219 (or 641464211 counting only the distinct ones).

The product of its (nonzero) digits is 219520, while the sum is 45.

The spelling of 1177728251004 in words is "one trillion, one hundred seventy-seven billion, seven hundred twenty-eight million, two hundred fifty-one thousand, four".