1487009664 has 240 divisors, whose sum is σ = 5149576080. Its totient is φ = 424714752.

The previous prime is 1487009651. The next prime is 1487009677. The reversal of 1487009664 is 4669007841.

It is an interprime number because it is at equal distance from previous prime (1487009651) and next prime (1487009677).

It is a super-2 number, since 2×1487009664² = 4422395481658785792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 506569 + ... + 509495.

It is an arithmetic number, because the mean of its divisors is an integer number (21456567).

Almost surely, 2^1487009664 is an apocalyptic number.

1487009664 is a gapful number since it is divisible by the number (14) 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 1487009664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2574788040).

1487009664 is an abundant number, since it is smaller than the sum of its proper divisors (3662566416).

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

1487009664 is an equidigital number, since it uses as much as digits as its factorization.

1487009664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2967 (or 2939 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 1487009664 is about 38561.7642749914. The cubic root of 1487009664 is about 1141.4001632532.

The spelling of 1487009664 in words is "one billion, four hundred eighty-seven million, nine thousand, six hundred sixty-four".