20242126887 has 16 divisors (see below), whose sum is σ = 27204114432. Its totient is φ = 13387573440.

The previous prime is 20242126859. The next prime is 20242126889. The reversal of 20242126887 is 78862124202.

It is not a de Polignac number, because 20242126887 - 2¹⁸ = 20241864743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20242126889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 653562 + ... + 683832.

It is an arithmetic number, because the mean of its divisors is an integer number (1700257152).

Almost surely, 2^20242126887 is an apocalyptic number.

20242126887 is a deficient number, since it is larger than the sum of its proper divisors (6961987545).

20242126887 is a wasteful number, since it uses less digits than its factorization.

20242126887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32038.

The product of its (nonzero) digits is 172032, while the sum is 42.

The spelling of 20242126887 in words is "twenty billion, two hundred forty-two million, one hundred twenty-six thousand, eight hundred eighty-seven".