20246913578 has 8 divisors (see below), whose sum is σ = 30403420320. Its totient is φ = 10112440140.

The previous prime is 20246913563. The next prime is 20246913607. The reversal of 20246913578 is 87531964202.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5506028 + ... + 5509703.

It is an arithmetic number, because the mean of its divisors is an integer number (3800427540).

It is a 2-persistent number, because it is pandigital, and so is 2⋅20246913578 = 40493827156, but 3⋅20246913578 = 60740740734 is not.

Almost surely, 2^20246913578 is an apocalyptic number.

20246913578 is a deficient number, since it is larger than the sum of its proper divisors (10156506742).

20246913578 is a wasteful number, since it uses less digits than its factorization.

20246913578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11016652.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 20246913578 in words is "twenty billion, two hundred forty-six million, nine hundred thirteen thousand, five hundred seventy-eight".