20457714065762 has 4 divisors (see below), whose sum is σ = 30686571098646. Its totient is φ = 10228857032880.

The previous prime is 20457714065759. The next prime is 20457714065773. The reversal of 20457714065762 is 26756041775402.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19890360139321 + 567353926441 = 4459861^2 + 753229^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20457714065698 and 20457714065707.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5114428516439 + ... + 5114428516442.

Almost surely, 2^{20457714065762} is an apocalyptic number.

20457714065762 is a deficient number, since it is larger than the sum of its proper divisors (10228857032884).

20457714065762 is a wasteful number, since it uses less digits than its factorization.

20457714065762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10228857032883.

The product of its (nonzero) digits is 19756800, while the sum is 56.

The spelling of 20457714065762 in words is "twenty trillion, four hundred fifty-seven billion, seven hundred fourteen million, sixty-five thousand, seven hundred sixty-two".