20262048487 has 4 divisors (see below), whose sum is σ = 20407818760. Its totient is φ = 20116278216.

The previous prime is 20262048479. The next prime is 20262048497. The reversal of 20262048487 is 78484026202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78484026202 = 2 ⋅39242013101.

It is a cyclic number.

It is not a de Polignac number, because 20262048487 - 2³ = 20262048479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20262048437) 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, 72884928 + ... + 72885205.

It is an arithmetic number, because the mean of its divisors is an integer number (5101954690).

Almost surely, 2^20262048487 is an apocalyptic number.

20262048487 is a deficient number, since it is larger than the sum of its proper divisors (145770273).

20262048487 is a wasteful number, since it uses less digits than its factorization.

20262048487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145770272.

The product of its (nonzero) digits is 344064, while the sum is 43.

The spelling of 20262048487 in words is "twenty billion, two hundred sixty-two million, forty-eight thousand, four hundred eighty-seven".