1178787480 has 128 divisors (see below), whose sum is σ = 4032504000. Its totient is φ = 273088512.

The previous prime is 1178787479. The next prime is 1178787523. The reversal of 1178787480 is 847878711.

1178787480 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4296 + ... + 48744.

Almost surely, 2^1178787480 is an apocalyptic number.

1178787480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1178787480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2016252000).

1178787480 is an abundant number, since it is smaller than the sum of its proper divisors (2853716520).

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

1178787480 is a wasteful number, since it uses less digits than its factorization.

1178787480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44493 (or 44489 counting only the distinct ones).

The product of its (nonzero) digits is 702464, while the sum is 51.

The square root of 1178787480 is about 34333.4746275410. The cubic root of 1178787480 is about 1056.3597330996.

The spelling of 1178787480 in words is "one billion, one hundred seventy-eight million, seven hundred eighty-seven thousand, four hundred eighty".