1487911680 has 360 divisors, whose sum is σ = 5413427712. Its totient is φ = 390168576.

The previous prime is 1487911669. The next prime is 1487911697. The reversal of 1487911680 is 861197841.

It is a happy number.

1487911680 is a `hidden beast` number, since 1 + 487 + 9 + 1 + 168 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 11715777 + ... + 11715903.

Almost surely, 2^1487911680 is an apocalyptic number.

1487911680 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 1487911680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2706713856).

1487911680 is an abundant number, since it is smaller than the sum of its proper divisors (3925516032).

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

1487911680 is a wasteful number, since it uses less digits than its factorization.

1487911680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 45.

The square root of 1487911680 is about 38573.4582323131. The cubic root of 1487911680 is about 1141.6309066771.

The spelling of 1487911680 in words is "one billion, four hundred eighty-seven million, nine hundred eleven thousand, six hundred eighty".