20673413698 has 24 divisors (see below), whose sum is σ = 36216757584. Its totient is φ = 8824725000.

The previous prime is 20673413639. The next prime is 20673413729. The reversal of 20673413698 is 89631437602.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 395628 + ... + 444823.

It is an arithmetic number, because the mean of its divisors is an integer number (1509031566).

Almost surely, 2^20673413698 is an apocalyptic number.

20673413698 is a deficient number, since it is larger than the sum of its proper divisors (15543343886).

20673413698 is a wasteful number, since it uses less digits than its factorization.

20673413698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840718 (or 840711 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 49.

The spelling of 20673413698 in words is "twenty billion, six hundred seventy-three million, four hundred thirteen thousand, six hundred ninety-eight".