20482198787381 has 4 divisors (see below), whose sum is σ = 20483949564000. Its totient is φ = 20480448010764.

The previous prime is 20482198787341. The next prime is 20482198787411. The reversal of 20482198787381 is 18378789128402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20482198787381 - 2⁶ = 20482198787317 is a prime.

It is a super-2 number, since 2×20482198787381² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20482198787341) 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, 875370761 + ... + 875394158.

It is an arithmetic number, because the mean of its divisors is an integer number (5120987391000).

Almost surely, 2^{20482198787381} is an apocalyptic number.

It is an amenable number.

20482198787381 is a deficient number, since it is larger than the sum of its proper divisors (1750776619).

20482198787381 is a wasteful number, since it uses less digits than its factorization.

20482198787381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1750776618.

The product of its (nonzero) digits is 86704128, while the sum is 68.

The spelling of 20482198787381 in words is "twenty trillion, four hundred eighty-two billion, one hundred ninety-eight million, seven hundred eighty-seven thousand, three hundred eighty-one".