20879741253810 has 16 divisors (see below), whose sum is σ = 50111379009216. Its totient is φ = 5567931001008.

The previous prime is 20879741253673. The next prime is 20879741253821. The reversal of 20879741253810 is 1835214797802.

It is a happy number.

It is a super-2 number, since 2×20879741253810² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347995687534 + ... + 347995687593.

It is an arithmetic number, because the mean of its divisors is an integer number (3131961188076).

Almost surely, 2^{20879741253810} is an apocalyptic number.

20879741253810 is an abundant number, since it is smaller than the sum of its proper divisors (29231637755406).

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

20879741253810 is a wasteful number, since it uses less digits than its factorization.

20879741253810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695991375137.

The product of its (nonzero) digits is 6773760, while the sum is 57.

The spelling of 20879741253810 in words is "twenty trillion, eight hundred seventy-nine billion, seven hundred forty-one million, two hundred fifty-three thousand, eight hundred ten".