20672461762 has 4 divisors (see below), whose sum is σ = 31008692646. Its totient is φ = 10336230880.

The previous prime is 20672461759. The next prime is 20672461769. The reversal of 20672461762 is 26716427602.

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., 17723863161 + 2948598601 = 133131^2 + 54301^2 .

It is not an unprimeable number, because it can be changed into a prime (20672461769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5168115439 + ... + 5168115442.

Almost surely, 2^20672461762 is an apocalyptic number.

20672461762 is a deficient number, since it is larger than the sum of its proper divisors (10336230884).

20672461762 is a wasteful number, since it uses less digits than its factorization.

20672461762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10336230883.

The product of its (nonzero) digits is 338688, while the sum is 43.

The spelling of 20672461762 in words is "twenty billion, six hundred seventy-two million, four hundred sixty-one thousand, seven hundred sixty-two".