20325491677 has 8 divisors (see below), whose sum is σ = 20456202816. Its totient is φ = 20194888032.

The previous prime is 20325491657. The next prime is 20325491687. The reversal of 20325491677 is 77619452302.

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-20325491677 is a prime.

It is a super-2 number, since 2×20325491677² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20325491657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371358 + ... + 422560.

It is an arithmetic number, because the mean of its divisors is an integer number (2557025352).

Almost surely, 2^20325491677 is an apocalyptic number.

It is an amenable number.

20325491677 is a deficient number, since it is larger than the sum of its proper divisors (130711139).

20325491677 is a wasteful number, since it uses less digits than its factorization.

20325491677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53747.

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 20325491677 in words is "twenty billion, three hundred twenty-five million, four hundred ninety-one thousand, six hundred seventy-seven".