20122842684087 has 64 divisors (see below), whose sum is σ = 36866779353600. Its totient is φ = 10665032520960.

The previous prime is 20122842684067. The next prime is 20122842684103. The reversal of 20122842684087 is 78048624822102.

It is a happy number.

20122842684087 is a `hidden beast` number, since 2 + 0 + 1 + 228 + 4 + 2 + 6 + 8 + 408 + 7 = 666.

It is not a de Polignac number, because 20122842684087 - 2⁶ = 20122842684023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122842684047) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 137079838 + ... + 137226555.

It is an arithmetic number, because the mean of its divisors is an integer number (576043427400).

Almost surely, 2^{20122842684087} is an apocalyptic number.

20122842684087 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

20122842684087 is a deficient number, since it is larger than the sum of its proper divisors (16743936669513).

20122842684087 is a wasteful number, since it uses less digits than its factorization.

20122842684087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274306445 (or 274306439 counting only the distinct ones).

The product of its (nonzero) digits is 5505024, while the sum is 54.

The spelling of 20122842684087 in words is "twenty trillion, one hundred twenty-two billion, eight hundred forty-two million, six hundred eighty-four thousand, eighty-seven".