14620139520 has 448 divisors, whose sum is σ = 55864719360. Its totient is φ = 3192127488.

The previous prime is 14620139507. The next prime is 14620139531. The reversal of 14620139520 is 2593102641.

It is a tau number, because it is divible by the number of its divisors (448).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19783311 + ... + 19784049.

Almost surely, 2^14620139520 is an apocalyptic number.

14620139520 is a gapful number since it is divisible by the number (10) 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 14620139520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27932359680).

14620139520 is an abundant number, since it is smaller than the sum of its proper divisors (41244579840).

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

14620139520 is an equidigital number, since it uses as much as digits as its factorization.

14620139520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803 (or 779 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 14620139520 in words is "fourteen billion, six hundred twenty million, one hundred thirty-nine thousand, five hundred twenty".