20734152582 has 32 divisors (see below), whose sum is σ = 48718010880. Its totient is φ = 5799762720.

The previous prime is 20734152577. The next prime is 20734152613. The reversal of 20734152582 is 28525143702.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 20734152582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12081982 + ... + 12083697.

It is an arithmetic number, because the mean of its divisors is an integer number (1522437840).

Almost surely, 2^20734152582 is an apocalyptic number.

20734152582 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20734152582 is an abundant number, since it is smaller than the sum of its proper divisors (27983858298).

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

20734152582 is a wasteful number, since it uses less digits than its factorization.

20734152582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24165708.

The product of its (nonzero) digits is 134400, while the sum is 39.

The spelling of 20734152582 in words is "twenty billion, seven hundred thirty-four million, one hundred fifty-two thousand, five hundred eighty-two".