20747263281701 has 8 divisors (see below), whose sum is σ = 22635233923104. Its totient is φ = 18859601939920.

The previous prime is 20747263281677. The next prime is 20747263281763. The reversal of 20747263281701 is 10718236274702.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20747263281701 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20747263281701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20747263781701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77184635 + ... + 77452968.

It is an arithmetic number, because the mean of its divisors is an integer number (2829404240388).

Almost surely, 2^{20747263281701} is an apocalyptic number.

It is an amenable number.

20747263281701 is a deficient number, since it is larger than the sum of its proper divisors (1887970641403).

20747263281701 is a wasteful number, since it uses less digits than its factorization.

20747263281701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154649811.

The product of its (nonzero) digits is 1580544, while the sum is 50.

The spelling of 20747263281701 in words is "twenty trillion, seven hundred forty-seven billion, two hundred sixty-three million, two hundred eighty-one thousand, seven hundred one".