2687486951 has 4 divisors (see below), whose sum is σ = 2687634312. Its totient is φ = 2687339592.

The previous prime is 2687486929. The next prime is 2687486969. The reversal of 2687486951 is 1596847862.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2687486951 - 2³⁰ = 1613745127 is a prime.

It is a super-3 number, since 3×2687486951³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2687486051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41696 + ... + 84341.

It is an arithmetic number, because the mean of its divisors is an integer number (671908578).

Almost surely, 2^2687486951 is an apocalyptic number.

2687486951 is a deficient number, since it is larger than the sum of its proper divisors (147361).

2687486951 is a wasteful number, since it uses less digits than its factorization.

2687486951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147360.

The product of its digits is 5806080, while the sum is 56.

The square root of 2687486951 is about 51840.9775274348. The cubic root of 2687486951 is about 1390.3221914135.

The spelling of 2687486951 in words is "two billion, six hundred eighty-seven million, four hundred eighty-six thousand, nine hundred fifty-one".