1887513216 has 64 divisors (see below), whose sum is σ = 5231718720. Its totient is φ = 601812992.

The previous prime is 1887513197. The next prime is 1887513217. The reversal of 1887513216 is 6123157881.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×1887513216² = 7125412281149325312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1887513217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98025 + ... + 115688.

It is an arithmetic number, because the mean of its divisors is an integer number (81745605).

Almost surely, 2^1887513216 is an apocalyptic number.

1887513216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1887513216 is an abundant number, since it is smaller than the sum of its proper divisors (3344205504).

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

1887513216 is a wasteful number, since it uses less digits than its factorization.

1887513216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213753 (or 213741 counting only the distinct ones).

The product of its digits is 80640, while the sum is 42.

The square root of 1887513216 is about 43445.5200912591. The cubic root of 1887513216 is about 1235.8430902288.

The spelling of 1887513216 in words is "one billion, eight hundred eighty-seven million, five hundred thirteen thousand, two hundred sixteen".