20474623675677 has 16 divisors (see below), whose sum is σ = 28906254336960. Its totient is φ = 12846421247232.

The previous prime is 20474623675673. The next prime is 20474623675679. The reversal of 20474623675677 is 77657632647402.

It is not a de Polignac number, because 20474623675677 - 2² = 20474623675673 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20474623675673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4620402 + ... + 7892867.

It is an arithmetic number, because the mean of its divisors is an integer number (1806640896060).

Almost surely, 2^{20474623675677} is an apocalyptic number.

It is an amenable number.

20474623675677 is a deficient number, since it is larger than the sum of its proper divisors (8431630661283).

20474623675677 is a wasteful number, since it uses less digits than its factorization.

20474623675677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12545372.

The product of its (nonzero) digits is 497871360, while the sum is 66.

The spelling of 20474623675677 in words is "twenty trillion, four hundred seventy-four billion, six hundred twenty-three million, six hundred seventy-five thousand, six hundred seventy-seven".