2610505987 has 4 divisors (see below), whose sum is σ = 2612541960. Its totient is φ = 2608470016.

The previous prime is 2610505967. The next prime is 2610505991. The reversal of 2610505987 is 7895050162.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7895050162 = 2 ⋅3947525081.

It is a cyclic number.

It is not a de Polignac number, because 2610505987 - 2¹⁵ = 2610473219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2610505967) 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, 1016062 + ... + 1018627.

It is an arithmetic number, because the mean of its divisors is an integer number (653135490).

Almost surely, 2^2610505987 is an apocalyptic number.

2610505987 is a deficient number, since it is larger than the sum of its proper divisors (2035973).

2610505987 is a wasteful number, since it uses less digits than its factorization.

2610505987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2035972.

The product of its (nonzero) digits is 151200, while the sum is 43.

The square root of 2610505987 is about 51093.1109544134. The cubic root of 2610505987 is about 1376.9184877107.

The spelling of 2610505987 in words is "two billion, six hundred ten million, five hundred five thousand, nine hundred eighty-seven".