20462389558272 has 1320 divisors, whose sum is σ = 69508244290320. Its totient is φ = 5972923514880.

The previous prime is 20462389558249. The next prime is 20462389558283. The reversal of 20462389558272 is 27285598326402.

20462389558272 is a `hidden beast` number, since 2 + 0 + 4 + 6 + 2 + 3 + 8 + 9 + 558 + 2 + 72 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 31050666679 + ... + 31050667337.

It is an arithmetic number, because the mean of its divisors is an integer number (52657760826).

Almost surely, 2^{20462389558272} 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 20462389558272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34754122145160).

20462389558272 is an abundant number, since it is smaller than the sum of its proper divisors (49045854732048).

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

20462389558272 is a wasteful number, since it uses less digits than its factorization.

20462389558272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807 (or 761 counting only the distinct ones).

The product of its (nonzero) digits is 116121600, while the sum is 63.

The spelling of 20462389558272 in words is "twenty trillion, four hundred sixty-two billion, three hundred eighty-nine million, five hundred fifty-eight thousand, two hundred seventy-two".