20392611270 has 128 divisors (see below), whose sum is σ = 53281013760. Its totient is φ = 4976173440.

The previous prime is 20392611241. The next prime is 20392611271. The reversal of 20392611270 is 7211629302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20392611271) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15601957 + ... + 15603263.

It is an arithmetic number, because the mean of its divisors is an integer number (416257920).

Almost surely, 2^20392611270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20392611270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26640506880).

20392611270 is an abundant number, since it is smaller than the sum of its proper divisors (32888402490).

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

20392611270 is a wasteful number, since it uses less digits than its factorization.

20392611270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250.

The product of its (nonzero) digits is 9072, while the sum is 33.

The spelling of 20392611270 in words is "twenty billion, three hundred ninety-two million, six hundred eleven thousand, two hundred seventy".