20071397457276 has 192 divisors, whose sum is σ = 53166752808960. Its totient is φ = 5839550496000.

The previous prime is 20071397457247. The next prime is 20071397457289. The reversal of 20071397457276 is 67275479317002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 706451511 + ... + 706479921.

It is an arithmetic number, because the mean of its divisors is an integer number (276910170880).

Almost surely, 2^{20071397457276} 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 20071397457276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26583376404480).

20071397457276 is an abundant number, since it is smaller than the sum of its proper divisors (33095355351684).

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

20071397457276 is a wasteful number, since it uses less digits than its factorization.

20071397457276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30376 (or 30374 counting only the distinct ones).

The product of its (nonzero) digits is 31116960, while the sum is 60.

The spelling of 20071397457276 in words is "twenty trillion, seventy-one billion, three hundred ninety-seven million, four hundred fifty-seven thousand, two hundred seventy-six".