20319421470 has 32 divisors (see below), whose sum is σ = 49566068640. Its totient is φ = 5329683840.

The previous prime is 20319421429. The next prime is 20319421471. The reversal of 20319421470 is 7412491302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20319421471) 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, 5549925 + ... + 5553584.

It is an arithmetic number, because the mean of its divisors is an integer number (1548939645).

Almost surely, 2^20319421470 is an apocalyptic number.

20319421470 is an abundant number, since it is smaller than the sum of its proper divisors (29246647170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20319421470 is a wasteful number, since it uses less digits than its factorization.

20319421470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11103580.

The product of its (nonzero) digits is 12096, while the sum is 33.

The spelling of 20319421470 in words is "twenty billion, three hundred nineteen million, four hundred twenty-one thousand, four hundred seventy".