20527435740 has 288 divisors, whose sum is σ = 71965018944. Its totient is φ = 4342947840.

The previous prime is 20527435729. The next prime is 20527435763. The reversal of 20527435740 is 4753472502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3045414 + ... + 3052146.

It is an arithmetic number, because the mean of its divisors is an integer number (249878538).

Almost surely, 2^20527435740 is an apocalyptic number.

20527435740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20527435740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35982509472).

20527435740 is an abundant number, since it is smaller than the sum of its proper divisors (51437583204).

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

20527435740 is a wasteful number, since it uses less digits than its factorization.

20527435740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6837 (or 6828 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 39.

The spelling of 20527435740 in words is "twenty billion, five hundred twenty-seven million, four hundred thirty-five thousand, seven hundred forty".