6261987416 has 16 divisors (see below), whose sum is σ = 11745123000. Its totient is φ = 3129954624.

The previous prime is 6261987397. The next prime is 6261987439. The reversal of 6261987416 is 6147891626.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103970 + ... + 152753.

Almost surely, 2^6261987416 is an apocalyptic number.

It is an amenable number.

6261987416 is a deficient number, since it is larger than the sum of its proper divisors (5483135584).

6261987416 is a wasteful number, since it uses less digits than its factorization.

6261987416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259778 (or 259774 counting only the distinct ones).

The product of its digits is 870912, while the sum is 50.

The square root of 6261987416 is about 79132.7202615960. The cubic root of 6261987416 is about 1843.1926510302.

The spelling of 6261987416 in words is "six billion, two hundred sixty-one million, nine hundred eighty-seven thousand, four hundred sixteen".