20279369088 has 256 divisors, whose sum is σ = 69136416000. Its totient is φ = 5783592960.

The previous prime is 20279369087. The next prime is 20279369101. The reversal of 20279369088 is 88096397202.

It is a happy number.

20279369088 is a `hidden beast` number, since 2 + 0 + 279 + 369 + 0 + 8 + 8 = 666.

It is a super-2 number, since 2×20279369088² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20279369083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 630583 + ... + 661961.

It is an arithmetic number, because the mean of its divisors is an integer number (270064125).

Almost surely, 2^20279369088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20279369088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34568208000).

20279369088 is an abundant number, since it is smaller than the sum of its proper divisors (48857046912).

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

20279369088 is a wasteful number, since it uses less digits than its factorization.

20279369088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31430 (or 31412 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 20279369088 in words is "twenty billion, two hundred seventy-nine million, three hundred sixty-nine thousand, eighty-eight".