20457601762 has 36 divisors (see below), whose sum is σ = 33432831810. Its totient is φ = 9384251136.

The previous prime is 20457601753. The next prime is 20457601789. The reversal of 20457601762 is 26710675402.

It can be written as a sum of positive squares in 3 ways, for example, as 10083975561 + 10373626201 = 100419^2 + 101851^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 10828914 + ... + 10830802.

Almost surely, 2^20457601762 is an apocalyptic number.

20457601762 is a deficient number, since it is larger than the sum of its proper divisors (12975230048).

20457601762 is a wasteful number, since it uses less digits than its factorization.

20457601762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275 (or 2083 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 20457601762 in words is "twenty billion, four hundred fifty-seven million, six hundred one thousand, seven hundred sixty-two".