20679701342 has 8 divisors (see below), whose sum is σ = 31038277296. Its totient is φ = 10333608912.

The previous prime is 20679701311. The next prime is 20679701347. The reversal of 20679701342 is 24310797602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20679701342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20679701347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3116738 + ... + 3123365.

It is an arithmetic number, because the mean of its divisors is an integer number (3879784662).

Almost surely, 2^20679701342 is an apocalyptic number.

20679701342 is a deficient number, since it is larger than the sum of its proper divisors (10358575954).

20679701342 is a wasteful number, since it uses less digits than its factorization.

20679701342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6241762.

The product of its (nonzero) digits is 127008, while the sum is 41.

The spelling of 20679701342 in words is "twenty billion, six hundred seventy-nine million, seven hundred one thousand, three hundred forty-two".