20381286741 has 8 divisors (see below), whose sum is σ = 27348139104. Its totient is φ = 13500979440.

The previous prime is 20381286727. The next prime is 20381286787. The reversal of 20381286741 is 14768218302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20381286741 - 2⁷ = 20381286613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20381286693 and 20381286702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20381286041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21635715 + ... + 21636656.

It is an arithmetic number, because the mean of its divisors is an integer number (3418517388).

Almost surely, 2^20381286741 is an apocalyptic number.

It is an amenable number.

20381286741 is a deficient number, since it is larger than the sum of its proper divisors (6966852363).

20381286741 is a wasteful number, since it uses less digits than its factorization.

20381286741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43272531.

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 20381286741 in words is "twenty billion, three hundred eighty-one million, two hundred eighty-six thousand, seven hundred forty-one".