2567490787 has 8 divisors (see below), whose sum is σ = 2635416000. Its totient is φ = 2500379304.

The previous prime is 2567490781. The next prime is 2567490803. The reversal of 2567490787 is 7870947652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2567490787 - 2⁷ = 2567490659 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2567490781) 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, 197037 + ... + 209662.

It is an arithmetic number, because the mean of its divisors is an integer number (329427000).

Almost surely, 2^2567490787 is an apocalyptic number.

2567490787 is a deficient number, since it is larger than the sum of its proper divisors (67925213).

2567490787 is a wasteful number, since it uses less digits than its factorization.

2567490787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406865.

The product of its (nonzero) digits is 5927040, while the sum is 55.

The square root of 2567490787 is about 50670.4133296740. The cubic root of 2567490787 is about 1369.3137357137.

The spelling of 2567490787 in words is "two billion, five hundred sixty-seven million, four hundred ninety thousand, seven hundred eighty-seven".