20758811292 has 36 divisors (see below), whose sum is σ = 53590127136. Its totient is φ = 6772377600.

The previous prime is 20758811287. The next prime is 20758811303. The reversal of 20758811292 is 29211885702.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×20758811292³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6132709 + ... + 6136092.

Almost surely, 2^20758811292 is an apocalyptic number.

It is an amenable number.

20758811292 is an abundant number, since it is smaller than the sum of its proper divisors (32831315844).

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

20758811292 is a wasteful number, since it uses less digits than its factorization.

20758811292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12268858 (or 12268853 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The spelling of 20758811292 in words is "twenty billion, seven hundred fifty-eight million, eight hundred eleven thousand, two hundred ninety-two".