1487665275840 has 224 divisors, whose sum is σ = 5370203900160. Its totient is φ = 387484812288.

The previous prime is 1487665275823. The next prime is 1487665275871. The reversal of 1487665275840 is 485725667841.

1487665275840 is a `hidden beast` number, since 1 + 4 + 8 + 7 + 66 + 527 + 5 + 8 + 40 = 666.

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, 1630614 + ... + 2373653.

Almost surely, 2^{1487665275840} is an apocalyptic number.

1487665275840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1487665275840 is an abundant number, since it is smaller than the sum of its proper divisors (3882538624320).

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

1487665275840 is a wasteful number, since it uses less digits than its factorization.

1487665275840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4004336 (or 4004320 counting only the distinct ones).

The product of its (nonzero) digits is 90316800, while the sum is 63.

The spelling of 1487665275840 in words is "one trillion, four hundred eighty-seven billion, six hundred sixty-five million, two hundred seventy-five thousand, eight hundred forty".