2750421487 has 4 divisors (see below), whose sum is σ = 3000459816. Its totient is φ = 2500383160.

The previous prime is 2750421481. The next prime is 2750421521. The reversal of 2750421487 is 7841240572.

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

It is a de Polignac number, because none of the positive numbers 2^k-2750421487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2750421481) 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, 125019148 + ... + 125019169.

It is an arithmetic number, because the mean of its divisors is an integer number (750114954).

Almost surely, 2^2750421487 is an apocalyptic number.

2750421487 is a deficient number, since it is larger than the sum of its proper divisors (250038329).

2750421487 is a wasteful number, since it uses less digits than its factorization.

2750421487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250038328.

The product of its (nonzero) digits is 125440, while the sum is 40.

The square root of 2750421487 is about 52444.4609753976. The cubic root of 2750421487 is about 1401.0912388319.

The spelling of 2750421487 in words is "two billion, seven hundred fifty million, four hundred twenty-one thousand, four hundred eighty-seven".